ci: deploy with ssh_host=localhost on staging-ipv4

## 0.3.0 - 2026-02-14

### Features

- Support legacy, pre-OpenPGP packet format

### Miscellaneous Tasks

- *(dist)* Switch to musl targets

### Refactor

- Remove unnecessary Arc
- Use a custom, minimal SMTP client instead of lettre

Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>

.github/workflows/ci.yaml

@@ -14,7 +14,8 @@ jobs:
         # Otherwise `test_deployed_state` will be unhappy.
         with:
           ref: ${{ github.event.pull_request.head.sha }}
-
+      - name: download filtermail
+        run: curl -L https://github.com/chatmail/filtermail/releases/download/v0.3.0/filtermail-x86_64 -o /usr/local/bin/filtermail && chmod +x /usr/local/bin/filtermail
       - name: run chatmaild tests 
         working-directory: chatmaild
         run: pipx run tox

.github/workflows/test-and-deploy-ipv4only.yaml

@@ -71,25 +71,35 @@ jobs:
       - name: run deploy-chatmail offline tests 
         run: pytest --pyargs cmdeploy 
 
-      - run: |
+      - name: setup dependencies
-          cmdeploy init staging-ipv4.testrun.org
+        run: |
-          sed -i 's#disable_ipv6 = False#disable_ipv6 = True#' chatmail.ini
+          ssh root@staging-ipv4.testrun.org apt update
+          ssh root@staging-ipv4.testrun.org apt install -y git python3.11-venv python3-dev gcc
+          ssh root@staging-ipv4.testrun.org git clone https://github.com/chatmail/relay
+          ssh root@staging-ipv4.testrun.org "cd relay && git checkout " ${{ github.head_ref }}
+          ssh root@staging-ipv4.testrun.org "cd relay && scripts/initenv.sh"
 
-      - run: cmdeploy run --verbose --skip-dns-check
+      - name: initialize config
+        run: |
+          ssh root@staging-ipv4.testrun.org "cd relay && scripts/cmdeploy init staging-ipv4.testrun.org"
+          ssh root@staging-ipv4.testrun.org "sed -i 's#disable_ipv6 = False#disable_ipv6 = True#' relay/chatmail.ini"
+          ssh root@staging-ipv4.testrun.org "sed -i 's/#\s*mtail_address/mtail_address/' relay/chatmail.ini"
+
+      - run: ssh root@staging-ipv4.testrun.org "cd relay && scripts/cmdeploy run --verbose --skip-dns-check"
 
       - name: set DNS entries
         run: |
-          ssh -o StrictHostKeyChecking=accept-new -v root@staging-ipv4.testrun.org chown opendkim:opendkim -R /etc/dkimkeys
+          ssh root@staging-ipv4.testrun.org chown opendkim:opendkim -R /etc/dkimkeys
-          cmdeploy dns --zonefile staging-generated.zone
+          ssh root@staging-ipv4.testrun.org "cd relay && scripts/cmdeploy dns --zonefile staging-generated.zone"
-          cat staging-generated.zone >> .github/workflows/staging-ipv4.testrun.org-default.zone
+          ssh root@staging-ipv4.testrun.org cat relay/staging-generated.zone >> .github/workflows/staging-ipv4.testrun.org-default.zone
           cat .github/workflows/staging-ipv4.testrun.org-default.zone
           scp .github/workflows/staging-ipv4.testrun.org-default.zone root@ns.testrun.org:/etc/nsd/staging-ipv4.testrun.org.zone
           ssh root@ns.testrun.org nsd-checkzone staging-ipv4.testrun.org /etc/nsd/staging-ipv4.testrun.org.zone
           ssh root@ns.testrun.org systemctl reload nsd
 
       - name: cmdeploy test
-        run: CHATMAIL_DOMAIN2=ci-chatmail.testrun.org cmdeploy test --slow
+        run: ssh root@staging-ipv4.testrun.org "cd relay && CHATMAIL_DOMAIN2=ci-chatmail.testrun.org scripts/cmdeploy test --slow"
 
       - name: cmdeploy dns
-        run: cmdeploy dns -v
+        run: ssh root@staging-ipv4.testrun.org "cd relay && scripts/cmdeploy dns -v"
 

.github/workflows/test-and-deploy.yaml

@@ -74,7 +74,10 @@ jobs:
       - name: run deploy-chatmail offline tests 
         run: pytest --pyargs cmdeploy 
 
-      - run: cmdeploy init staging2.testrun.org
+      - run: |
+          cmdeploy init staging2.testrun.org
+          sed -i 's/^ssh_host/#ssh_host/' chatmail.ini
+          sed -i 's/#\s*mtail_address/mtail_address/' chatmail.ini
 
       - run: cmdeploy run --verbose --skip-dns-check
 

chatmaild/pyproject.toml

@@ -24,7 +24,6 @@ where = ['src']
 [project.scripts]
 doveauth = "chatmaild.doveauth:main"
 chatmail-metadata = "chatmaild.metadata:main"
-filtermail = "chatmaild.filtermail:main"
 chatmail-metrics = "chatmaild.metrics:main"
 chatmail-expire = "chatmaild.expire:main"
 chatmail-fsreport = "chatmaild.fsreport:main"

chatmaild/src/chatmaild/config.py

@@ -1,3 +1,4 @@
+import os
 from pathlib import Path
 
 import iniconfig
@@ -8,40 +9,41 @@ from chatmaild.user import User
 def read_config(inipath):
     assert Path(inipath).exists(), inipath
     cfg = iniconfig.IniConfig(inipath)
-    params = cfg.sections["params"]
+    return Config(inipath, params=cfg.sections["params"])
-    default_config_content = get_default_config_content(params["mail_domain"])
-    df_params = iniconfig.IniConfig("ini", data=default_config_content)["params"]
-    new_params = dict(df_params.items())
-    new_params.update(params)
-    return Config(inipath, params=new_params)
 
 
 class Config:
     def __init__(self, inipath, params):
         self._inipath = inipath
         self.mail_domain = params["mail_domain"]
-        self.max_user_send_per_minute = int(params["max_user_send_per_minute"])
+        self.ssh_host = params.get("ssh_host", self.mail_domain)
-        self.max_mailbox_size = params["max_mailbox_size"]
+        self.max_user_send_per_minute = int(params.get("max_user_send_per_minute", 60))
-        self.max_message_size = int(params.get("max_message_size", "31457280"))
+        self.max_user_send_burst_size = int(params.get("max_user_send_burst_size", 10))
-        self.delete_mails_after = params["delete_mails_after"]
+        self.max_mailbox_size = params.get("max_mailbox_size", "500M")
-        self.delete_large_after = params["delete_large_after"]
+        self.max_message_size = int(params.get("max_message_size", 31457280))
-        self.delete_inactive_users_after = int(params["delete_inactive_users_after"])
+        self.delete_mails_after = params.get("delete_mails_after", "20")
-        self.username_min_length = int(params["username_min_length"])
+        self.delete_large_after = params.get("delete_large_after", "7")
-        self.username_max_length = int(params["username_max_length"])
+        self.delete_inactive_users_after = int(
-        self.password_min_length = int(params["password_min_length"])
+            params.get("delete_inactive_users_after", 100)
-        self.passthrough_senders = params["passthrough_senders"].split()
-        self.passthrough_recipients = params["passthrough_recipients"].split()
-        self.www_folder = params.get("www_folder", "")
-        self.filtermail_smtp_port = int(params["filtermail_smtp_port"])
-        self.filtermail_smtp_port_incoming = int(
-            params["filtermail_smtp_port_incoming"]
         )
-        self.postfix_reinject_port = int(params["postfix_reinject_port"])
+        self.username_min_length = int(params.get("username_min_length", 9))
+        self.username_max_length = int(params.get("username_max_length", 9))
+        self.password_min_length = int(params.get("password_min_length", 9))
+        self.passthrough_senders = params.get("passthrough_senders", "").split()
+        self.passthrough_recipients = params.get("passthrough_recipients", "").split()
+        self.www_folder = params.get("www_folder", "")
+        self.filtermail_smtp_port = int(params.get("filtermail_smtp_port", "10080"))
+        self.filtermail_smtp_port_incoming = int(
+            params.get("filtermail_smtp_port_incoming", "10081")
+        )
+        self.postfix_reinject_port = int(params.get("postfix_reinject_port", "10025"))
         self.postfix_reinject_port_incoming = int(
-            params["postfix_reinject_port_incoming"]
+            params.get("postfix_reinject_port_incoming", "10026")
         )
         self.mtail_address = params.get("mtail_address")
         self.disable_ipv6 = params.get("disable_ipv6", "false").lower() == "true"
+        self.addr_v4 = os.environ.get("CHATMAIL_ADDR_V4", "")
+        self.addr_v6 = os.environ.get("CHATMAIL_ADDR_V6", "")
         self.acme_email = params.get("acme_email", "")
         self.imap_rawlog = params.get("imap_rawlog", "false").lower() == "true"
         self.imap_compress = params.get("imap_compress", "false").lower() == "true"

chatmaild/src/chatmaild/dictproxy.py

@@ -22,7 +22,7 @@ class DictProxy:
                 wfile.flush()
 
     def handle_dovecot_request(self, msg, transactions):
-        # see https://doc.dovecot.org/developer_manual/design/dict_protocol/#dovecot-dict-protocol
+        # see https://doc.dovecot.org/2.3/developer_manual/design/dict_protocol/#dovecot-dict-protocol
         short_command = msg[0]
         parts = msg[1:].split("\t")
 

chatmaild/src/chatmaild/doveauth.py

@@ -16,7 +16,7 @@ NOCREATE_FILE = "/etc/chatmail-nocreate"
 
 
 def encrypt_password(password: str):
-    # https://doc.dovecot.org/configuration_manual/authentication/password_schemes/
+    # https://doc.dovecot.org/2.3/configuration_manual/authentication/password_schemes/
     passhash = crypt_r.crypt(password, crypt_r.METHOD_SHA512)
     return "{SHA512-CRYPT}" + passhash
 

chatmaild/src/chatmaild/expire.py

@@ -144,7 +144,7 @@ class Expiry:
                 continue
             changed = True
         if changed:
-            self.remove_file("maildirsize")
+            self.remove_file(f"{mbox.basedir}/maildirsize")
 
     def get_summary(self):
         return (

chatmaild/src/chatmaild/filtermail.py

@@ -1,378 +0,0 @@
-#!/usr/bin/env python3
-import asyncio
-import base64
-import binascii
-import sys
-import time
-from email import policy
-from email.parser import BytesParser
-from email.utils import parseaddr
-from smtplib import SMTP as SMTPClient
-
-from aiosmtpd.controller import Controller
-from aiosmtpd.smtp import SMTP
-
-from .config import read_config
-
-ENCRYPTION_NEEDED_523 = "523 Encryption Needed: Invalid Unencrypted Mail"
-
-
-def check_openpgp_payload(payload: bytes):
-    """Checks the OpenPGP payload.
-
-    OpenPGP payload must consist only of PKESK and SKESK packets
-    terminated by a single SEIPD packet.
-
-    Returns True if OpenPGP payload is correct,
-    False otherwise.
-
-    May raise IndexError while trying to read OpenPGP packet header
-    if it is truncated.
-    """
-    i = 0
-    while i < len(payload):
-        # Only OpenPGP format is allowed.
-        if payload[i] & 0xC0 != 0xC0:
-            return False
-
-        packet_type_id = payload[i] & 0x3F
-        i += 1
-
-        while payload[i] >= 224 and payload[i] < 255:
-            # Partial body length.
-            partial_length = 1 << (payload[i] & 0x1F)
-            i += 1 + partial_length
-
-        if payload[i] < 192:
-            # One-octet length.
-            body_len = payload[i]
-            i += 1
-        elif payload[i] < 224:
-            # Two-octet length.
-            body_len = ((payload[i] - 192) << 8) + payload[i + 1] + 192
-            i += 2
-        elif payload[i] == 255:
-            # Five-octet length.
-            body_len = (
-                (payload[i + 1] << 24)
-                | (payload[i + 2] << 16)
-                | (payload[i + 3] << 8)
-                | payload[i + 4]
-            )
-            i += 5
-        else:
-            # Impossible, partial body length was processed above.
-            return False
-
-        i += body_len
-
-        if i == len(payload):
-            # Last packet should be
-            # Symmetrically Encrypted and Integrity Protected Data Packet (SEIPD)
-            #
-            # This is the only place where this function may return `True`.
-            return packet_type_id == 18
-        elif packet_type_id not in [1, 3]:
-            # All packets except the last one must be either
-            # Public-Key Encrypted Session Key Packet (PKESK)
-            # or
-            # Symmetric-Key Encrypted Session Key Packet (SKESK)
-            return False
-
-    return False
-
-
-def check_armored_payload(payload: str, outgoing: bool):
-    """Check the armored PGP message for invalid content.
-
-    :param payload: the armored PGP message
-    :param outgoing: whether the message is outgoing or incoming
-    :return: whether the message is a valid PGP message
-    """
-    prefix = "-----BEGIN PGP MESSAGE-----\r\n"
-    if not payload.startswith(prefix):
-        return False
-    payload = payload.removeprefix(prefix)
-
-    while payload.endswith("\r\n"):
-        payload = payload.removesuffix("\r\n")
-    suffix = "-----END PGP MESSAGE-----"
-    if not payload.endswith(suffix):
-        return False
-    payload = payload.removesuffix(suffix)
-
-    version_comment = "Version: "
-    if payload.startswith(version_comment):
-        if outgoing:  # Disallow comments in outgoing messages
-            return False
-        # Remove comments from incoming messages
-        payload = payload.partition("\r\n")[2]
-
-    while payload.startswith("\r\n"):
-        payload = payload.removeprefix("\r\n")
-
-    # Remove CRC24.
-    payload = payload.rpartition("=")[0]
-
-    try:
-        payload = base64.b64decode(payload)
-    except binascii.Error:
-        return False
-
-    try:
-        return check_openpgp_payload(payload)
-    except IndexError:
-        return False
-
-
-def is_securejoin(message):
-    if message.get("secure-join") not in ["vc-request", "vg-request"]:
-        return False
-    if not message.is_multipart():
-        return False
-    parts_count = 0
-    for part in message.iter_parts():
-        parts_count += 1
-        if parts_count > 1:
-            return False
-        if part.is_multipart():
-            return False
-        if part.get_content_type() != "text/plain":
-            return False
-
-        payload = part.get_payload().strip().lower()
-        if payload not in ("secure-join: vc-request", "secure-join: vg-request"):
-            return False
-    return True
-
-
-def check_encrypted(message, outgoing=True):
-    """Check that the message is an OpenPGP-encrypted message.
-
-    MIME structure of the message must correspond to <https://www.rfc-editor.org/rfc/rfc3156>.
-    """
-    if not message.is_multipart():
-        return False
-    if message.get_content_type() != "multipart/encrypted":
-        return False
-    parts_count = 0
-    for part in message.iter_parts():
-        # We explicitly check Content-Type of each part later,
-        # but this is to be absolutely sure `get_payload()` returns string and not list.
-        if part.is_multipart():
-            return False
-
-        if parts_count == 0:
-            if part.get_content_type() != "application/pgp-encrypted":
-                return False
-
-            payload = part.get_payload()
-            if payload.strip() != "Version: 1":
-                return False
-        elif parts_count == 1:
-            if part.get_content_type() != "application/octet-stream":
-                return False
-
-            if not check_armored_payload(part.get_payload(), outgoing=outgoing):
-                return False
-        else:
-            return False
-        parts_count += 1
-    return True
-
-
-async def asyncmain_beforequeue(config, mode):
-    if mode == "outgoing":
-        port = config.filtermail_smtp_port
-        handler = OutgoingBeforeQueueHandler(config)
-    else:
-        port = config.filtermail_smtp_port_incoming
-        handler = IncomingBeforeQueueHandler(config)
-    HackedController(
-        handler,
-        hostname="127.0.0.1",
-        port=port,
-        data_size_limit=config.max_message_size,
-    ).start()
-
-
-def recipient_matches_passthrough(recipient, passthrough_recipients):
-    for addr in passthrough_recipients:
-        if recipient == addr:
-            return True
-        if addr[0] == "@" and recipient.endswith(addr):
-            return True
-    return False
-
-
-class HackedController(Controller):
-    def factory(self):
-        return SMTPDiscardRCPTO_options(self.handler, **self.SMTP_kwargs)
-
-
-class SMTPDiscardRCPTO_options(SMTP):
-    def _getparams(self, params):
-        # Ignore RCPT TO parameters.
-        #
-        # Otherwise parameters such as `ORCPT=...`
-        # or `NOTIFY=DELAY,FAILURE` (generated by Stalwart)
-        # make aiosmtpd reject the message here:
-        # <https://github.com/aio-libs/aiosmtpd/blob/98f578389ae86e5345cc343fa4e5a17b21d9c96d/aiosmtpd/smtp.py#L1379-L1384>
-        return {}
-
-
-class OutgoingBeforeQueueHandler:
-    def __init__(self, config):
-        self.config = config
-        self.send_rate_limiter = SendRateLimiter()
-
-    async def handle_MAIL(self, server, session, envelope, address, mail_options):
-        log_info(f"handle_MAIL from {address}")
-        envelope.mail_from = address
-        max_sent = self.config.max_user_send_per_minute
-        if not self.send_rate_limiter.is_sending_allowed(address, max_sent):
-            return f"450 4.7.1: Too much mail from {address}"
-
-        parts = envelope.mail_from.split("@")
-        if len(parts) != 2:
-            return f"500 Invalid from address <{envelope.mail_from!r}>"
-
-        return "250 OK"
-
-    async def handle_DATA(self, server, session, envelope):
-        loop = asyncio.get_running_loop()
-        return await loop.run_in_executor(None, self.sync_handle_DATA, envelope)
-
-    def sync_handle_DATA(self, envelope):
-        log_info("handle_DATA before-queue")
-        error = self.check_DATA(envelope)
-        if error:
-            return error
-        log_info("re-injecting the mail that passed checks")
-        client = SMTPClient("localhost", self.config.postfix_reinject_port)
-        client.sendmail(
-            envelope.mail_from, envelope.rcpt_tos, envelope.original_content
-        )
-        return "250 OK"
-
-    def check_DATA(self, envelope):
-        """the central filtering function for e-mails."""
-        log_info(f"Processing DATA message from {envelope.mail_from}")
-
-        message = BytesParser(policy=policy.default).parsebytes(envelope.content)
-        mail_encrypted = check_encrypted(message, outgoing=True)
-
-        _, from_addr = parseaddr(message.get("from").strip())
-
-        if envelope.mail_from.lower() != from_addr.lower():
-            return f"500 Invalid FROM <{from_addr!r}> for <{envelope.mail_from!r}>"
-
-        if mail_encrypted or is_securejoin(message):
-            print("Outgoing: Filtering encrypted mail.", file=sys.stderr)
-            return
-
-        print("Outgoing: Filtering unencrypted mail.", file=sys.stderr)
-
-        if envelope.mail_from in self.config.passthrough_senders:
-            return
-
-        # allow self-sent Autocrypt Setup Message
-        if envelope.rcpt_tos == [from_addr]:
-            if message.get("subject") == "Autocrypt Setup Message":
-                if message.get_content_type() == "multipart/mixed":
-                    return
-
-        passthrough_recipients = self.config.passthrough_recipients
-
-        for recipient in envelope.rcpt_tos:
-            if recipient_matches_passthrough(recipient, passthrough_recipients):
-                continue
-
-            print("Rejected unencrypted mail.", file=sys.stderr)
-            return ENCRYPTION_NEEDED_523
-
-
-class IncomingBeforeQueueHandler:
-    def __init__(self, config):
-        self.config = config
-
-    async def handle_DATA(self, server, session, envelope):
-        loop = asyncio.get_running_loop()
-        return await loop.run_in_executor(None, self.sync_handle_DATA, envelope)
-
-    def sync_handle_DATA(self, envelope):
-        log_info("handle_DATA before-queue")
-        error = self.check_DATA(envelope)
-        if error:
-            return error
-        log_info("re-injecting the mail that passed checks")
-
-        client = SMTPClient(
-            "localhost",
-            self.config.postfix_reinject_port_incoming,
-        )
-        client.sendmail(
-            envelope.mail_from, envelope.rcpt_tos, envelope.original_content
-        )
-        return "250 OK"
-
-    def check_DATA(self, envelope):
-        """the central filtering function for e-mails."""
-        log_info(f"Processing DATA message from {envelope.mail_from}")
-
-        message = BytesParser(policy=policy.default).parsebytes(envelope.content)
-        mail_encrypted = check_encrypted(message, outgoing=False)
-
-        if mail_encrypted or is_securejoin(message):
-            print("Incoming: Filtering encrypted mail.", file=sys.stderr)
-            return
-
-        print("Incoming: Filtering unencrypted mail.", file=sys.stderr)
-
-        # we want cleartext mailer-daemon messages to pass through
-        # chatmail core will typically not display them as normal messages
-        if message.get("auto-submitted"):
-            _, from_addr = parseaddr(message.get("from").strip())
-            if from_addr.lower().startswith("mailer-daemon@"):
-                if message.get_content_type() == "multipart/report":
-                    return
-
-        for recipient in envelope.rcpt_tos:
-            user = self.config.get_user(recipient)
-            if user is None or user.is_incoming_cleartext_ok():
-                continue
-
-            print("Rejected unencrypted mail.", file=sys.stderr)
-            return ENCRYPTION_NEEDED_523
-
-
-class SendRateLimiter:
-    def __init__(self):
-        self.addr2timestamps = {}
-
-    def is_sending_allowed(self, mail_from, max_send_per_minute):
-        last = self.addr2timestamps.setdefault(mail_from, [])
-        now = time.time()
-        last[:] = [ts for ts in last if ts >= (now - 60)]
-        if len(last) <= max_send_per_minute:
-            last.append(now)
-            return True
-        return False
-
-
-def log_info(msg):
-    print(msg, file=sys.stderr)
-
-
-def main():
-    args = sys.argv[1:]
-    assert len(args) == 2
-    config = read_config(args[0])
-    mode = args[1]
-    loop = asyncio.new_event_loop()
-    asyncio.set_event_loop(loop)
-    assert mode in ["incoming", "outgoing"]
-    task = asyncmain_beforequeue(config, mode)
-    loop.create_task(task)
-    log_info("entering serving loop")
-    loop.run_forever()

chatmaild/src/chatmaild/ini/chatmail.ini.f

@@ -3,6 +3,9 @@
 # mail domain (MUST be set to fully qualified chat mail domain)
 mail_domain = {mail_domain}
 
+# Where to deploy the relay - if unspecified, mail_domain will be used.
+ssh_host = localhost
+
 #
 # If you only do private test deploys, you don't need to modify any settings below
 #
@@ -11,9 +14,12 @@ mail_domain = {mail_domain}
 # Restrictions on user addresses
 #
 
-# how many mails a user can send out per minute
+# email sending rate per user and minute
 max_user_send_per_minute = 60
 
+# per-user max burst size for sending rate limiting (GCRA bucket capacity)
+max_user_send_burst_size = 10
+
 # maximum mailbox size of a chatmail address
 max_mailbox_size = 500M
 

chatmaild/src/chatmaild/tests/test_filtermail.py

@@ -1,361 +0,0 @@
-import pytest
-
-from chatmaild.filtermail import (
-    IncomingBeforeQueueHandler,
-    OutgoingBeforeQueueHandler,
-    SendRateLimiter,
-    check_armored_payload,
-    check_encrypted,
-    is_securejoin,
-)
-
-
-@pytest.fixture
-def maildomain():
-    # let's not depend on a real chatmail instance for the offline tests below
-    return "chatmail.example.org"
-
-
-@pytest.fixture
-def handler(make_config, maildomain):
-    config = make_config(maildomain)
-    return OutgoingBeforeQueueHandler(config)
-
-
-@pytest.fixture
-def inhandler(make_config, maildomain):
-    config = make_config(maildomain)
-    return IncomingBeforeQueueHandler(config)
-
-
-def test_reject_forged_from(maildata, gencreds, handler):
-    class env:
-        mail_from = gencreds()[0]
-        rcpt_tos = [gencreds()[0]]
-
-    # test that the filter lets good mail through
-    to_addr = gencreds()[0]
-    env.content = maildata(
-        "encrypted.eml", from_addr=env.mail_from, to_addr=to_addr
-    ).as_bytes()
-
-    assert not handler.check_DATA(envelope=env)
-
-    # test that the filter rejects forged mail
-    env.content = maildata(
-        "encrypted.eml", from_addr="forged@c3.testrun.org", to_addr=to_addr
-    ).as_bytes()
-    error = handler.check_DATA(envelope=env)
-    assert "500" in error
-
-
-def test_filtermail_no_encryption_detection(maildata):
-    msg = maildata(
-        "plain.eml", from_addr="some@example.org", to_addr="other@example.org"
-    )
-    assert not check_encrypted(msg)
-
-    # https://xkcd.com/1181/
-    msg = maildata(
-        "fake-encrypted.eml", from_addr="some@example.org", to_addr="other@example.org"
-    )
-    assert not check_encrypted(msg)
-
-
-def test_filtermail_securejoin_detection(maildata):
-    msg = maildata(
-        "securejoin-vc.eml", from_addr="some@example.org", to_addr="other@example.org"
-    )
-    assert is_securejoin(msg)
-
-    msg = maildata(
-        "securejoin-vc-fake.eml",
-        from_addr="some@example.org",
-        to_addr="other@example.org",
-    )
-    assert not is_securejoin(msg)
-
-
-def test_filtermail_encryption_detection(maildata):
-    msg = maildata(
-        "encrypted.eml",
-        from_addr="1@example.org",
-        to_addr="2@example.org",
-        subject="Subject does not matter, will be replaced anyway",
-    )
-    assert check_encrypted(msg)
-
-
-def test_filtermail_no_literal_packets(maildata):
-    """Test that literal OpenPGP packet is not considered an encrypted mail."""
-    msg = maildata("literal.eml", from_addr="1@example.org", to_addr="2@example.org")
-    assert not check_encrypted(msg)
-
-
-def test_filtermail_unencrypted_mdn(maildata, gencreds):
-    """Unencrypted MDNs should not pass."""
-    from_addr = gencreds()[0]
-    to_addr = gencreds()[0] + ".other"
-    msg = maildata("mdn.eml", from_addr=from_addr, to_addr=to_addr)
-
-    assert not check_encrypted(msg)
-
-
-def test_send_rate_limiter():
-    limiter = SendRateLimiter()
-    for i in range(100):
-        if limiter.is_sending_allowed("some@example.org", 10):
-            if i <= 10:
-                continue
-            pytest.fail("limiter didn't work")
-        else:
-            assert i == 11
-            break
-
-
-def test_cleartext_excempt_privacy(maildata, gencreds, handler):
-    from_addr = gencreds()[0]
-    to_addr = "privacy@testrun.org"
-    handler.config.passthrough_recipients = [to_addr]
-    false_to = "privacy@something.org"
-
-    msg = maildata("plain.eml", from_addr=from_addr, to_addr=to_addr)
-
-    class env:
-        mail_from = from_addr
-        rcpt_tos = [to_addr]
-        content = msg.as_bytes()
-
-    # assert that None/no error is returned
-    assert not handler.check_DATA(envelope=env)
-
-    class env2:
-        mail_from = from_addr
-        rcpt_tos = [to_addr, false_to]
-        content = msg.as_bytes()
-
-    assert "523" in handler.check_DATA(envelope=env2)
-
-
-def test_cleartext_self_send_autocrypt_setup_message(maildata, gencreds, handler):
-    from_addr = gencreds()[0]
-    to_addr = from_addr
-
-    msg = maildata("asm.eml", from_addr=from_addr, to_addr=to_addr)
-
-    class env:
-        mail_from = from_addr
-        rcpt_tos = [to_addr]
-        content = msg.as_bytes()
-
-    assert not handler.check_DATA(envelope=env)
-
-
-def test_cleartext_send_fails(maildata, gencreds, handler):
-    from_addr = gencreds()[0]
-    to_addr = gencreds()[0]
-
-    msg = maildata("plain.eml", from_addr=from_addr, to_addr=to_addr)
-
-    class env:
-        mail_from = from_addr
-        rcpt_tos = [to_addr]
-        content = msg.as_bytes()
-
-    res = handler.check_DATA(envelope=env)
-    assert "523 Encryption Needed" in res
-
-
-def test_cleartext_incoming_fails(maildata, gencreds, inhandler):
-    from_addr = gencreds()[0]
-    to_addr, password = gencreds()
-
-    msg = maildata("plain.eml", from_addr=from_addr, to_addr=to_addr)
-
-    class env:
-        mail_from = from_addr
-        rcpt_tos = [to_addr]
-        content = msg.as_bytes()
-
-    user = inhandler.config.get_user(to_addr)
-    user.set_password(password)
-    res = inhandler.check_DATA(envelope=env)
-    assert "523 Encryption Needed" in res
-
-    user.allow_incoming_cleartext()
-    assert not inhandler.check_DATA(envelope=env)
-
-
-def test_cleartext_incoming_mailer_daemon(maildata, gencreds, inhandler):
-    from_addr = "mailer-daemon@example.org"
-    to_addr = gencreds()[0]
-
-    msg = maildata("mailer-daemon.eml", from_addr=from_addr, to_addr=to_addr)
-
-    class env:
-        mail_from = from_addr
-        rcpt_tos = [to_addr]
-        content = msg.as_bytes()
-
-    assert not inhandler.check_DATA(envelope=env)
-
-
-def test_cleartext_passthrough_domains(maildata, gencreds, handler):
-    from_addr = gencreds()[0]
-    to_addr = "privacy@x.y.z"
-    handler.config.passthrough_recipients = ["@x.y.z"]
-    false_to = "something@x.y"
-
-    msg = maildata("plain.eml", from_addr=from_addr, to_addr=to_addr)
-
-    class env:
-        mail_from = from_addr
-        rcpt_tos = [to_addr]
-        content = msg.as_bytes()
-
-    # assert that None/no error is returned
-    assert not handler.check_DATA(envelope=env)
-
-    class env2:
-        mail_from = from_addr
-        rcpt_tos = [to_addr, false_to]
-        content = msg.as_bytes()
-
-    assert "523" in handler.check_DATA(envelope=env2)
-
-
-def test_cleartext_passthrough_senders(gencreds, handler, maildata):
-    acc1 = gencreds()[0]
-    to_addr = "recipient@something.org"
-    handler.config.passthrough_senders = [acc1]
-
-    msg = maildata("plain.eml", from_addr=acc1, to_addr=to_addr)
-
-    class env:
-        mail_from = acc1
-        rcpt_tos = to_addr
-        content = msg.as_bytes()
-
-    # assert that None/no error is returned
-    assert not handler.check_DATA(envelope=env)
-
-
-def test_check_armored_payload():
-    prefix = "-----BEGIN PGP MESSAGE-----\r\n"
-    comment = "Version: ProtonMail\r\n"
-    payload = """\r
-wU4DSqFx0d1yqAoSAQdAYkX/ZN/Az4B0k7X47zKyWrXxlDEdS3WOy0Yf2+GJTFgg\r
-Zk5ql0mLG8Ze+ZifCS0XMO4otlemSyJ0K1ZPdFMGzUDBTgNqzkFabxXoXRIBB0AM\r
-755wlX41X6Ay3KhnwBq7yEqSykVH6F3x11iHPKraLCAGZoaS8bKKNy/zg5slda1X\r
-pt14b4aC1VwtSnYhcRRELNLD/wE2TFif+g7poMmFY50VyMPLYjVP96Z5QCT4+z4H\r
-Ikh/pRRN8S3JNMrRJHc6prooSJmLcx47Y5un7VFy390MsJ+LiUJuQMDdYWRAinfs\r
-Ebm89Ezjm7F03qbFPXE0X4ZNzVXS/eKO0uhJQdiov/vmbn41rNtHmNpqjaO0vi5+\r
-sS9tR7yDUrIXiCUCN78eBLVioxtktsPZm5cDORbQWzv+7nmCEz9/JowCUcBVdCGn\r
-1ofOaH82JCAX/cRx08pLaDNj6iolVBsi56Dd+2bGxJOZOG2AMcEyz0pXY0dOAJCD\r
-iUThcQeGIdRnU3j8UBcnIEsjLu2+C+rrwMZQESMWKnJ0rnqTk0pK5kXScr6F/L0L\r
-UE49ccIexNm3xZvYr5drszr6wz3Tv5fdue87P4etBt90gF/Vzknck+g1LLlkzZkp\r
-d8dI0k2tOSPjUbDPnSy1x+X73WGpPZmj0kWT+RGvq0nH6UkJj3AQTG2qf1T8jK+3\r
-rTp3LR9vDkMwDjX4R8SA9c0wdnUzzr79OYQC9lTnzcx+fM6BBmgQ2GrS33jaFLp7\r
-L6/DFpCl5zhnPjM/2dKvMkw/Kd6XS/vjwsO405FQdjSDiQEEAZA+ZvAfcjdccbbU\r
-yCO+x0QNdeBsufDVnh3xvzuWy4CICdTQT4s1AWRPCzjOj+SGmx5WqCLWfsd8Ma0+\r
-w/C7SfTYu1FDQILLM+llpq1M/9GPley4QZ8JQjo262AyPXsPF/OW48uuZz0Db1xT\r
-Yh4iHBztj4VSdy7l2+IyaIf7cnL4EEBFxv/MwmVDXvDlxyvfAfIsd3D9SvJESzKZ\r
-VWDYwaocgeCN+ojKu1p885lu1EfRbX3fr3YO02K5/c2JYDkc0Py0W3wUP/J1XUax\r
-pbKpzwlkxEgtmzsGqsOfMJqBV3TNDrOA2uBsa+uBqP5MGYLZ49S/4v/bW9I01Cr1\r
-D2ZkV510Y1Vgo66WlP8mRqOTyt/5WRhPD+MxXdk67BNN/PmO6tMlVoJDuk+XwWPR\r
-t2TvNaND/yabT9eYI55Og4fzKD6RIjouUX8DvKLkm+7aXxVs2uuLQ3Jco3O82z55\r
-dbShU1jYsrw9oouXUz06MHPbkdhNbF/2hfhZ2qA31sNeovJw65iUv7sDKX3LVWgJ\r
-10jlywcDwqlU8CO7WC9lGixYTbnOkYZpXCGEl8e6Jbs79l42YFo4ogYpFK1NXFhV\r
-kOXRmDf/wmfj+c/ld3L2PkvwlgofhCudOQknZbo3ub1gjiTn7L+lMGHIj/3suMIl\r
-ID4EUxAXScIM1ZEz2fjtW5jATlqYcLjLTbf/olw6HFyPNH+9IssqXeZNKnGwPUB9\r
-3lTXsg0tpzl+x7F/2WjEw1DSNhjC0KnHt1vEYNMkUGDGFdN9y3ERLqX/FIgiASUb\r
-bTvAVupnAK3raBezGmhrs6LsQtLS9P0VvQiLU3uDhMqw8Z4SISLpcD+NnVBHzQqm\r
-6W5Qn/8xsCL6av18yUVTi2G3igt3QCNoYx9evt2ZcIkNoyyagUVjfZe5GHXh8Dnz\r
-GaBXW/hg3HlXLRGaQu4RYCzBMJILcO25OhZOg6jbkCLiEexQlm2e9krB5cXR49Al\r
-UN4fiB0KR9JyG2ayUdNJVkXZSZLnHyRgiaadlpUo16LVvw==\r
-=b5Kp\r
------END PGP MESSAGE-----\r
-\r
-\r
-"""
-
-    commented_payload = prefix + comment + payload
-    assert check_armored_payload(commented_payload, outgoing=False) == True
-    assert check_armored_payload(commented_payload, outgoing=True) == False
-
-    payload = prefix + payload
-    assert check_armored_payload(payload, outgoing=False) == True
-    assert check_armored_payload(payload, outgoing=True) == True
-
-    payload = payload.removesuffix("\r\n")
-    assert check_armored_payload(payload, outgoing=False) == True
-    assert check_armored_payload(payload, outgoing=True) == True
-
-    payload = payload.removesuffix("\r\n")
-    assert check_armored_payload(payload, outgoing=False) == True
-    assert check_armored_payload(payload, outgoing=True) == True
-
-    payload = payload.removesuffix("\r\n")
-    assert check_armored_payload(payload, outgoing=False) == True
-    assert check_armored_payload(payload, outgoing=True) == True
-
-    payload = """-----BEGIN PGP MESSAGE-----\r
-\r
-HELLOWORLD
------END PGP MESSAGE-----\r
-\r
-"""
-    assert check_armored_payload(payload, outgoing=False) == False
-    assert check_armored_payload(payload, outgoing=True) == False
-
-    payload = """-----BEGIN PGP MESSAGE-----\r
-\r
-=njUN
------END PGP MESSAGE-----\r
-\r
-"""
-    assert check_armored_payload(payload, outgoing=False) == False
-    assert check_armored_payload(payload, outgoing=True) == False
-
-    # Test payload using partial body length
-    # as generated by GopenPGP.
-    payload = """-----BEGIN PGP MESSAGE-----\r
-\r
-wV4DdCVjRfOT3TQSAQdAY5+pjT6mlCxPGdR3be4w7oJJRUGIPI/Vnh+mJxGSm34w\r
-LNlVc89S1g22uQYFif2sUJsQWbpoHpNkuWpkSgOaHmNvrZiY/YU5iv+cZ3LbmtUG\r
-0uoBisSHh9O1c+5sYZSbrvYZ1NOwlD7Fv/U5/Mw4E5+CjxfdgNGp5o3DDddzPK78\r
-jseDhdSXxnaiIJC93hxNX6R1RPt3G2gukyzx69wciPQShcF8zf3W3o75Ed7B8etV\r
-QEeB16xzdFhKa9JxdjTu3osgCs21IO7wpcFkjc7nZzlW6jPnELJJaNmv4yOOCjMp\r
-6YAkaN/BkL+jHTznHDuDsT5ilnTXpwHDU1Cm9PIx/KFcNCQnIB+2DcdIHPHUH1ci\r
-jvqoeXAVWjKXEjS7PqPFuP/xGbrWG2ugs+toXJOKbgRkExvKs1dwPFKrgghvCVbW\r
-AcKejQKAPArLwpkA7aD875TZQShvGt74fNs45XBlGOYOnNOAJ1KAmzrXLIDViyyB\r
-kDsmTBk785xofuCkjBpXSe6vsMprPzCteDfaUibh8FHeJjucxPerwuOPEmnogNaf\r
-YyL4+iy8H8I9/p7pmUqILprxTG0jTOtlk0bTVzeiF56W1xbtSEMuOo4oFbQTyOM2\r
-bKXaYo774Jm+rRtKAnnI2dtf9RpK19cog6YNzfYjesLKbXDsPZbN5rmwyFiCvvxC\r
-kQ6JLob+B2fPdY2gzy7LypxktS8Zi1HJcWDHJGVmQodaDLqKUObb4M26bXDe6oxI\r
-NS8PJz5exVbM3KhZnUOEn6PJRBBf5a/ZqxlhZPcQo/oBuhKpBRpO5kSDwPIUByu3\r
-UlXLSkpMqe9pUarAOEuQjfl2RVY7U+RrQYp4YP5keMO+i8NCefAFbowTTufO1JIq\r
-2nVgCi/QVnxZyEc9OYt/8AE3g4cdojE+vsSDifZLSWYIetpfrohHv3dT3StD1QRG\r
-0QE6qq6oKpg/IL0cjvuX4c7a7bslv2fXp8t75y37RU6253qdIebhxc/cRhPbc/yu\r
-p0YLyD4SrvKTLP2ZV95jT4IPEpqm4AN3QmiOzdtqR2gLyb62L8QfqI/FdwsIiRiM\r
-hqydwoqt/lfSqG1WKPh+6EkMkH+TDiCC1BQdbN1MNcyUtcjb35PR2c8Ld2TF3guA\r
-jLIqMt/Vb7hBoMb2FcsOYY25ka9oV62OwgKWLXnFzk+modMR5fzb4kxVVAYEqP+D\r
-T5KO1Vs76v1fyPGOq6BbBCvLwTqe/e6IZInJles4v5jrhnLcGKmNGivCUDe6X6NY\r
-UKNt5RsZllwDQpaAb5dMNhyrk8SgIE7TBI7rvqIdUCE52Vy+0JDxFg5olRpFUfO6\r
-/MyTW3Yo/ekk/npHr7iYYqJTCc21bDGLWQcIo/XO7WPxrKNWGBNPFnkRdw0MaKr4\r
-+cEM3V8NFnSEpC12xA+RX/CezuJtwXZK5MpG76eYqMO6qyC+c25YcFecEufDZDxx\r
-ZLqRszVRyxyWPtk/oIeQK2v9wOqY6N9/ff01gHz69vqYqN5bUw/QKZsmx1zW+gPw\r
-6x2tDK2BHeYl182gCbhlKISRFwCtbjqZSkiKWao/VtygHkw0fK34avJuyQ/X9YaN\r
-BRy+7Lf3VA53pnB5WJ1xwRXN8VDvmZeXzv2krHveCMemj0OjnRoCLu117xN0A5m9\r
-Fm/RoDix5PolDHtWTtr2m1n2hp2LHnj8at9lFEd0SKhAYHVL9KjzycwWODZRXt+x\r
-zGDDuooEeTvdY5NLyKcl4gETz1ZP4Ez5jGGjhPSwSpq1mU7UaJ9ZXXdr4KHyifW6\r
-ggNzNsGhXTap7IWZpTtqXABydfiBshmH2NjqtNDwBweJVSgP10+r0WhMWlaZs6xl\r
-V3o5yskJt6GlkwpJxZrTvN6Tiww/eW7HFV6NGf7IRSWY5tJc/iA7/92tOmkdvJ1q\r
-myLbG7cJB787QjplEyVe2P/JBO6xYvbkJLf9Q+HaviTO25rugRSrYsoKMDfO8VlQ\r
-1CcnTPVtApPZJEQzAWJEgVAM8uIlkqWJJMgyWT34sTkdBeCUFGloXQFs9Yxd0AGf\r
-/zHEkYZSTKpVSvAIGu4=\r
-=6iHb\r
------END PGP MESSAGE-----\r
-"""
-    assert check_armored_payload(payload, outgoing=False) == True
-    assert check_armored_payload(payload, outgoing=True) == True

cmdeploy/src/cmdeploy/basedeploy.py

@@ -17,9 +17,8 @@ def configure_remote_units(mail_domain, units) -> None:
 
     # install systemd units
     for fn in units:
-        execpath = fn if fn != "filtermail-incoming" else "filtermail"
         params = dict(
-            execpath=f"{remote_venv_dir}/bin/{execpath}",
+            execpath=f"{remote_venv_dir}/bin/{fn}",
             config_path=remote_chatmail_inipath,
             remote_venv_dir=remote_venv_dir,
             mail_domain=mail_domain,

cmdeploy/src/cmdeploy/cmdeploy.py

@@ -71,6 +71,11 @@ def run_cmd_options(parser):
         action="store_true",
         help="install/upgrade the server, but disable postfix & dovecot for now",
     )
+    parser.add_argument(
+        "--website-only",
+        action="store_true",
+        help="only update/deploy the website, skipping full server upgrade/deployment, useful when you only changed/updated the web pages and don't need to re-run a full server upgrade",
+    )
     parser.add_argument(
         "--skip-dns-check",
         dest="dns_check_disabled",
@@ -83,7 +88,7 @@ def run_cmd_options(parser):
 def run_cmd(args, out):
     """Deploy chatmail services on the remote server."""
 
-    ssh_host = args.ssh_host if args.ssh_host else args.config.mail_domain
+    ssh_host = args.ssh_host if args.ssh_host else args.config.ssh_host
     sshexec = get_sshexec(ssh_host)
     require_iroh = args.config.enable_iroh_relay
     if not args.dns_check_disabled:
@@ -93,13 +98,17 @@ def run_cmd(args, out):
 
     env = os.environ.copy()
     env["CHATMAIL_INI"] = args.inipath
+    env["CHATMAIL_WEBSITE_ONLY"] = "True" if args.website_only else ""
     env["CHATMAIL_DISABLE_MAIL"] = "True" if args.disable_mail else ""
     env["CHATMAIL_REQUIRE_IROH"] = "True" if require_iroh else ""
+    if not args.dns_check_disabled:
+        env["CHATMAIL_ADDR_V4"] = remote_data.get("A") or ""
+        env["CHATMAIL_ADDR_V6"] = remote_data.get("AAAA") or ""
     deploy_path = importlib.resources.files(__package__).joinpath("run.py").resolve()
     pyinf = "pyinfra --dry" if args.dry_run else "pyinfra"
 
     cmd = f"{pyinf} --ssh-user root {ssh_host} {deploy_path} -y"
-    if ssh_host in ["localhost", "@docker"]:
+    if ssh_host in ["localhost", "@local", "@docker"]:
         cmd = f"{pyinf} @local {deploy_path} -y"
 
     if version.parse(pyinfra.__version__) < version.parse("3"):
@@ -108,9 +117,14 @@ def run_cmd(args, out):
 
     try:
         retcode = out.check_call(cmd, env=env)
-        if retcode == 0:
+        if args.website_only:
+            if retcode == 0:
+                out.green("Website deployment completed.")
+            else:
+                out.red("Website deployment failed.")
+        elif retcode == 0:
             out.green("Deploy completed, call `cmdeploy dns` next.")
-        elif not remote_data["acme_account_url"]:
+        elif not args.dns_check_disabled and not remote_data["acme_account_url"]:
             out.red("Deploy completed but letsencrypt not configured")
             out.red("Run 'cmdeploy run' again")
             retcode = 0
@@ -135,7 +149,7 @@ def dns_cmd_options(parser):
 
 def dns_cmd(args, out):
     """Check DNS entries and optionally generate dns zone file."""
-    ssh_host = args.ssh_host if args.ssh_host else args.config.mail_domain
+    ssh_host = args.ssh_host if args.ssh_host else args.config.ssh_host
     sshexec = get_sshexec(ssh_host, verbose=args.verbose)
     remote_data = dns.get_initial_remote_data(sshexec, args.config.mail_domain)
     if not remote_data:
@@ -169,7 +183,7 @@ def status_cmd_options(parser):
 def status_cmd(args, out):
     """Display status for online chatmail instance."""
 
-    ssh_host = args.ssh_host if args.ssh_host else args.config.mail_domain
+    ssh_host = args.ssh_host if args.ssh_host else args.config.ssh_host
     sshexec = get_sshexec(ssh_host, verbose=args.verbose)
 
     out.green(f"chatmail domain: {args.config.mail_domain}")
@@ -189,6 +203,7 @@ def test_cmd_options(parser):
         action="store_true",
         help="also run slow tests",
     )
+    add_ssh_host_option(parser)
 
 
 def test_cmd(args, out):
@@ -200,6 +215,9 @@ def test_cmd(args, out):
     x = importlib.util.find_spec("deltachat")
     if x is None:
         out.check_call(f"{sys.executable} -m pip install deltachat")
+    env = os.environ.copy()
+    if args.ssh_host:
+        env["CHATMAIL_SSH"] = args.ssh_host
 
     pytest_path = shutil.which("pytest")
     pytest_args = [
@@ -213,7 +231,7 @@ def test_cmd(args, out):
     ]
     if args.slow:
         pytest_args.append("--slow")
-    ret = out.run_ret(pytest_args)
+    ret = out.run_ret(pytest_args, env=env)
     return ret
 
 

cmdeploy/src/cmdeploy/deployers.py

@@ -10,6 +10,7 @@ from pathlib import Path
 
 from chatmaild.config import read_config
 from pyinfra import facts, host, logger
+from pyinfra.facts import hardware
 from pyinfra.api import FactBase
 from pyinfra.facts.files import Sha256File
 from pyinfra.facts.systemd import SystemdEnabled
@@ -26,6 +27,7 @@ from .basedeploy import (
     get_resource,
 )
 from .dovecot.deployer import DovecotDeployer
+from .filtermail.deployer import FiltermailDeployer
 from .mtail.deployer import MtailDeployer
 from .nginx.deployer import NginxDeployer
 from .opendkim.deployer import OpendkimDeployer
@@ -35,7 +37,7 @@ from .www import build_webpages, find_merge_conflict, get_paths
 
 class Port(FactBase):
     """
-    Returns the process occuping a port.
+    Returns the process occupying a port.
     """
 
     def command(self, port: int) -> str:
@@ -140,6 +142,10 @@ def _configure_remote_venv_with_chatmaild(config) -> None:
 
 
 class UnboundDeployer(Deployer):
+    def __init__(self, config):
+        self.config = config
+        self.need_restart = False
+
     def install(self):
         # Run local DNS resolver `unbound`.
         # `resolvconf` takes care of setting up /etc/resolv.conf
@@ -176,6 +182,27 @@ class UnboundDeployer(Deployer):
                 "unbound-anchor -a /var/lib/unbound/root.key || true",
             ],
         )
+        if self.config.disable_ipv6:
+            files.directory(
+                path="/etc/unbound/unbound.conf.d",
+                present=True,
+                user="root",
+                group="root",
+                mode="755",
+            )
+            conf = files.put(
+                src=get_resource("unbound/unbound.conf.j2"),
+                dest="/etc/unbound/unbound.conf.d/chatmail.conf",
+                user="root",
+                group="root",
+                mode="644",
+            )
+        else:
+            conf = files.file(
+                path="/etc/unbound/unbound.conf.d/chatmail.conf",
+                present=False,
+            )
+        self.need_restart |= conf.changed
 
     def activate(self):
         server.shell(
@@ -190,6 +217,7 @@ class UnboundDeployer(Deployer):
             service="unbound.service",
             running=True,
             enabled=True,
+            restarted=self.need_restart,
         )
 
 
@@ -416,8 +444,6 @@ class ChatmailVenvDeployer(Deployer):
     def __init__(self, config):
         self.config = config
         self.units = (
-            "filtermail",
-            "filtermail-incoming",
             "chatmail-metadata",
             "lastlogin",
             "chatmail-expire",
@@ -502,30 +528,44 @@ class GithashDeployer(Deployer):
         except Exception:
             git_diff = ""
         files.put(
-            name="Upload chatmail relay git commiit hash",
+            name="Upload chatmail relay git commit hash",
             src=StringIO(git_hash + git_diff),
             dest="/etc/chatmail-version",
             mode="700",
         )
 
 
-def deploy_chatmail(config_path: Path, disable_mail: bool) -> None:
+def deploy_chatmail(config_path: Path, disable_mail: bool, website_only: bool) -> None:
     """Deploy a chat-mail instance.
 
     :param config_path: path to chatmail.ini
     :param disable_mail: whether to disable postfix & dovecot
+    :param website_only: if True, only deploy the website
     """
     config = read_config(config_path)
     check_config(config)
     mail_domain = config.mail_domain
 
+    if website_only:
+        Deployment().perform_stages([WebsiteDeployer(config)])
+        return
+
     if host.get_fact(Port, port=53) != "unbound":
         files.line(
             name="Add 9.9.9.9 to resolv.conf",
             path="/etc/resolv.conf",
-            line="nameserver 9.9.9.9",
+            # Guard against resolv.conf missing a trailing newline (SolusVM bug).
+            line="\nnameserver 9.9.9.9",
         )
 
+    # Check if mtail_address interface is available (if configured)
+    if config.mtail_address and config.mtail_address not in ('127.0.0.1', '::1', 'localhost'):
+        ipv4_addrs = host.get_fact(hardware.Ipv4Addrs)
+        all_addresses = [addr for addrs in ipv4_addrs.values() for addr in addrs]
+        if config.mtail_address not in all_addresses:
+            Out().red(f"Deploy failed: mtail_address {config.mtail_address} is not available (VPN up?).\n")
+            exit(1)
+
     port_services = [
         (["master", "smtpd"], 25),
         ("unbound", 53),
@@ -536,6 +576,8 @@ def deploy_chatmail(config_path: Path, disable_mail: bool) -> None:
         (["master", "smtpd"], 587),
         (["imap-login", "dovecot"], 993),
         ("iroh-relay", 3340),
+        ("mtail", 3903),
+        ("stats", 3904),
         ("nginx", 8443),
         (["master", "smtpd"], config.postfix_reinject_port),
         (["master", "smtpd"], config.postfix_reinject_port_incoming),
@@ -545,8 +587,9 @@ def deploy_chatmail(config_path: Path, disable_mail: bool) -> None:
     for service, port in port_services:
         print(f"Checking if port {port} is available for {service}...")
         running_service = host.get_fact(Port, port=port)
+        services = [service] if isinstance(service, str) else service
         if running_service:
-            if running_service not in service:
+            if running_service not in services:
                 Out().red(
                     f"Deploy failed: port {port} is occupied by: {running_service}"
                 )
@@ -557,8 +600,9 @@ def deploy_chatmail(config_path: Path, disable_mail: bool) -> None:
     all_deployers = [
         ChatmailDeployer(mail_domain),
         LegacyRemoveDeployer(),
+        FiltermailDeployer(),
         JournaldDeployer(),
-        UnboundDeployer(),
+        UnboundDeployer(config),
         TurnDeployer(mail_domain),
         IrohDeployer(config.enable_iroh_relay),
         AcmetoolDeployer(config.acme_email, tls_domains),

cmdeploy/src/cmdeploy/dovecot/auth.conf

@@ -4,7 +4,7 @@ iterate_prefix = userdb/
 
 default_pass_scheme = plain
 # %E escapes characters " (double quote), ' (single quote) and \ (backslash) with \ (backslash).
-# See <https://doc.dovecot.org/configuration_manual/config_file/config_variables/#modifiers>
+# See <https://doc.dovecot.org/2.3/configuration_manual/config_file/config_variables/#modifiers>
 # for documentation.
 #
 # We escape user-provided input and use double quote as a separator.

cmdeploy/src/cmdeploy/dovecot/deployer.py

@@ -37,9 +37,7 @@ class DovecotDeployer(Deployer):
         restart = False if self.disable_mail else self.need_restart
 
         systemd.service(
-            name="disable dovecot for now"
+            name="Disable dovecot for now" if self.disable_mail else "Start and enable Dovecot",
-            if self.disable_mail
-            else "Start and enable Dovecot",
             service="dovecot.service",
             running=False if self.disable_mail else True,
             enabled=False if self.disable_mail else True,
@@ -116,7 +114,7 @@ def _configure_dovecot(config: Config, debug: bool = False) -> (bool, bool):
     )
     need_restart |= lua_push_notification_script.changed
 
-    # as per https://doc.dovecot.org/configuration_manual/os/
+    # as per https://doc.dovecot.org/2.3/configuration_manual/os/
     # it is recommended to set the following inotify limits
     for name in ("max_user_instances", "max_user_watches"):
         key = f"fs.inotify.{name}"
@@ -145,4 +143,11 @@ def _configure_dovecot(config: Config, debug: bool = False) -> (bool, bool):
     )
     daemon_reload |= restart_conf.changed
 
+    # Validate dovecot configuration before restart
+    if need_restart:
+        server.shell(
+            name="Validate dovecot configuration",
+            commands=["doveconf -n >/dev/null"],
+        )
+
     return need_restart, daemon_reload

cmdeploy/src/cmdeploy/dovecot/dovecot.conf.j2

@@ -1,7 +1,7 @@
 ## Dovecot configuration file
 
 {% if disable_ipv6 %}
-listen = *
+listen = 0.0.0.0
 {% endif %}
 
 protocols = imap lmtp
@@ -26,7 +26,7 @@ default_client_limit = 20000
 # Increase number of logged in IMAP connections.
 # Each connection is handled by a separate `imap` process.
 # `imap` process should have `client_limit=1` as described in
-# <https://doc.dovecot.org/configuration_manual/service_configuration/#service-limits>
+# <https://doc.dovecot.org/2.3/configuration_manual/service_configuration/#service-limits>
 # so each logged in IMAP session will need its own `imap` process.
 #
 # If this limit is reached,
@@ -44,11 +44,11 @@ mail_server_comment = Chatmail server
 
 # `zlib` enables compressing messages stored in the maildir.
 # See
-# <https://doc.dovecot.org/configuration_manual/zlib_plugin/>
+# <https://doc.dovecot.org/2.3/configuration_manual/zlib_plugin/>
 # for documentation.
 #
 # quota plugin documentation:
-# <https://doc.dovecot.org/configuration_manual/quota_plugin/>
+# <https://doc.dovecot.org/2.3/configuration_manual/quota_plugin/>
 mail_plugins = zlib quota
 
 imap_capability = +XDELTAPUSH XCHATMAIL
@@ -125,13 +125,13 @@ plugin {
 
 protocol lmtp {
   # notify plugin is a dependency of push_notification plugin:
-  # <https://doc.dovecot.org/settings/plugin/notify-plugin/>
+  # <https://doc.dovecot.org/2.3/settings/plugin/notify-plugin/>
   #
   # push_notification plugin documentation:
-  # <https://doc.dovecot.org/configuration_manual/push_notification/>
+  # <https://doc.dovecot.org/2.3/configuration_manual/push_notification/>
   #
   # mail_lua and push_notification_lua are needed for Lua push notification handler.
-  # <https://doc.dovecot.org/configuration_manual/push_notification/#configuration>
+  # <https://doc.dovecot.org/2.3/configuration_manual/push_notification/#configuration>
   mail_plugins = $mail_plugins mail_lua notify push_notification push_notification_lua
 }
 
@@ -154,7 +154,7 @@ plugin {
 
 # push_notification configuration
 plugin {
-  # <https://doc.dovecot.org/configuration_manual/push_notification/#lua-lua>
+  # <https://doc.dovecot.org/2.3/configuration_manual/push_notification/#lua-lua>
   push_notification_driver = lua:file=/etc/dovecot/push_notification.lua
 }
 
@@ -168,6 +168,8 @@ service lmtp {
   }
 }
 
+lmtp_add_received_header = no
+
 service auth {
   unix_listener /var/spool/postfix/private/auth {
     mode = 0660
@@ -277,3 +279,156 @@ service imap-hibernate {
   }
 }
 {% endif %}
+
+{% if config.mtail_address %}
+#
+# Dovecot Statistics
+#
+# OpenMetrics endpoint at http://{{- config.mtail_address}}:3904/metrics
+service stats {
+  inet_listener http {
+    port = 3904
+    address = {{- config.mtail_address}}
+  }
+}
+
+# IMAP Command Metrics
+# - Bytes in/out for compression efficiency analysis
+# - Lock wait time for contention debugging
+# - Grouped by command name and reply state
+metric imap_command {
+  filter = event=imap_command_finished
+  fields = bytes_in bytes_out lock_wait_usecs running_usecs
+  group_by = cmd_name tagged_reply_state
+}
+
+# Duration buckets for latency histograms (base 10: 10us, 100us, 1ms, 10ms, 100ms, 1s, 10s, 100s)
+metric imap_command_duration {
+  filter = event=imap_command_finished
+  group_by = cmd_name duration:exponential:1:8:10
+}
+
+# Slow command outliers (>1 second = 1000000 usecs)
+# Useful for alerting without high cardinality
+metric imap_command_slow {
+  filter = event=imap_command_finished AND duration>1000000 AND NOT cmd_name=IDLE
+  group_by = cmd_name
+}
+
+# IDLE-specific Metrics
+
+metric imap_idle {
+  filter = event=imap_command_finished AND cmd_name=IDLE
+  fields = bytes_in bytes_out running_usecs
+  group_by = tagged_reply_state
+}
+
+metric imap_idle_duration {
+  filter = event=imap_command_finished AND cmd_name=IDLE
+  # Base 10: 100ms to 27h (covers short wakeups to long idle sessions)
+  group_by = duration:exponential:5:11:10
+}
+
+metric imap_idle_commands {
+  filter = event=imap_command_finished AND cmd_name=IDLE
+  group_by = tagged_reply_state
+}
+
+metric imap_idle_failed {
+  filter = event=imap_command_finished AND cmd_name=IDLE AND NOT tagged_reply_state=OK
+}
+
+# Hibernation Metrics (requires imap_hibernate_timeout)
+
+metric imap_hibernated {
+  filter = event=imap_client_hibernated
+}
+
+metric imap_hibernated_failed {
+  filter = event=imap_client_hibernated AND error=*
+}
+
+metric imap_unhibernated {
+  filter = event=imap_client_unhibernated
+  fields = hibernation_usecs
+}
+
+metric imap_unhibernated_reason {
+  filter = event=imap_client_unhibernated
+  group_by = reason
+  fields = hibernation_usecs
+}
+
+metric imap_unhibernated_reason_sleep {
+  filter = event=imap_client_unhibernated
+  group_by = reason hibernation_usecs:exponential:4:8:10
+}
+
+metric imap_unhibernated_failed {
+  filter = event=imap_client_unhibernated AND error=*
+}
+
+# Hibernation duration buckets (how long clients stayed hibernated)
+# Base 10: 100ms to 27h
+metric imap_hibernation_duration {
+  filter = event=imap_client_unhibernated
+  group_by = reason duration:exponential:5:11:10
+}
+
+# Authentication / Login Metrics
+
+metric auth_request {
+  filter = event=auth_request_finished
+  group_by = success
+}
+
+metric auth_request_duration {
+  filter = event=auth_request_finished
+  group_by = success duration:exponential:2:6:10
+}
+
+metric auth_failed {
+  filter = event=auth_request_finished AND success=no
+}
+
+# Passdb cache effectiveness
+metric auth_passdb {
+  filter = event=auth_passdb_request_finished
+  group_by = result cache
+}
+
+# Master login (post-auth userdb lookup)
+metric auth_master_login {
+  filter = event=auth_master_client_login_finished
+}
+
+metric auth_master_login_failed {
+  filter = event=auth_master_client_login_finished AND error=*
+}
+
+# Mail Delivery (LMTP) - affects IDLE wakeup latency
+
+metric mail_delivery {
+  filter = event=mail_delivery_finished
+}
+
+metric mail_delivery_duration {
+  filter = event=mail_delivery_finished
+  group_by = duration:exponential:3:7:10
+}
+
+metric mail_delivery_failed {
+  filter = event=mail_delivery_finished AND error=*
+}
+
+# Connection Events
+
+metric client_connected {
+  filter = event=client_connection_connected AND category="service:imap"
+}
+
+metric client_disconnected {
+  filter = event=client_connection_disconnected AND category="service:imap"
+  fields = bytes_in bytes_out
+}
+{% endif %}

cmdeploy/src/cmdeploy/filtermail/deployer.py

@@ -0,0 +1,52 @@
+from pyinfra import facts, host
+from pyinfra.operations import files, systemd
+
+from cmdeploy.basedeploy import Deployer, get_resource
+
+
+class FiltermailDeployer(Deployer):
+    services = ["filtermail", "filtermail-incoming"]
+    bin_path = "/usr/local/bin/filtermail"
+    config_path = "/usr/local/lib/chatmaild/chatmail.ini"
+
+    def __init__(self):
+        self.need_restart = False
+
+    def install(self):
+        arch = host.get_fact(facts.server.Arch)
+        url = f"https://github.com/chatmail/filtermail/releases/download/v0.3.0/filtermail-{arch}"
+        sha256sum = {
+            "x86_64": "f14a31323ae2dad3b59d3fdafcde507521da2f951a9478cd1f2fe2b4463df71d",
+            "aarch64": "933770d75046c4fd7084ce8d43f905f8748333426ad839154f0fc654755ef09f",
+        }[arch]
+        self.need_restart |= files.download(
+            name="Download filtermail",
+            src=url,
+            sha256sum=sha256sum,
+            dest=self.bin_path,
+            mode="755",
+        ).changed
+
+    def configure(self):
+        for service in self.services:
+            self.need_restart |= files.template(
+                src=get_resource(f"filtermail/{service}.service.j2"),
+                dest=f"/etc/systemd/system/{service}.service",
+                user="root",
+                group="root",
+                mode="644",
+                bin_path=self.bin_path,
+                config_path=self.config_path,
+            ).changed
+
+    def activate(self):
+        for service in self.services:
+            systemd.service(
+                name=f"Start and enable {service}",
+                service=f"{service}.service",
+                running=True,
+                enabled=True,
+                restarted=self.need_restart,
+                daemon_reload=True,
+            )
+        self.need_restart = False

cmdeploy/src/cmdeploy/filtermail/filtermail-incoming.service.j2

@@ -2,11 +2,10 @@
 Description=Incoming Chatmail Postfix before queue filter 
 
 [Service]
-ExecStart={execpath} {config_path} incoming
+ExecStart={{ bin_path }} {{ config_path }} incoming
 Restart=always
 RestartSec=30
 User=vmail
 
 [Install]
 WantedBy=multi-user.target
-

cmdeploy/src/cmdeploy/filtermail/filtermail.service.j2

@@ -2,7 +2,7 @@
 Description=Outgoing Chatmail Postfix before queue filter
 
 [Service]
-ExecStart={execpath} {config_path} outgoing
+ExecStart={{ bin_path }} {{ config_path }} outgoing
 Restart=always
 RestartSec=30
 User=vmail

cmdeploy/src/cmdeploy/mtail/delivered_mail.mtail

@@ -44,21 +44,37 @@ counter warning_count
 }
 
 
-counter filtered_mail_count
+counter filtered_outgoing_mail_count
 
-counter encrypted_mail_count
+counter outgoing_encrypted_mail_count
-/Filtering encrypted mail\./ {
+/Outgoing: Filtering encrypted mail\./ {
-  encrypted_mail_count++
+  outgoing_encrypted_mail_count++
-  filtered_mail_count++
+  filtered_outgoing_mail_count++
 }
 
-counter unencrypted_mail_count
+counter outgoing_unencrypted_mail_count
-/Filtering unencrypted mail\./ {
+/Outgoing: Filtering unencrypted mail\./ {
-  unencrypted_mail_count++
+  outgoing_unencrypted_mail_count++
-  filtered_mail_count++
+  filtered_outgoing_mail_count++
 }
 
+
+counter filtered_incoming_mail_count
+
+counter incoming_encrypted_mail_count
+/Incoming: Filtering encrypted mail\./ {
+  incoming_encrypted_mail_count++
+  filtered_incoming_mail_count++
+}
+
+counter incoming_unencrypted_mail_count
+/Incoming: Filtering unencrypted mail\./ {
+  incoming_unencrypted_mail_count++
+  filtered_incoming_mail_count++
+}
+
+
 counter rejected_unencrypted_mail_count
-/Rejected unencrypted mail\./ {
+/Rejected unencrypted mail/ {
   rejected_unencrypted_mail_count++
 }

cmdeploy/src/cmdeploy/nginx/nginx.conf.j2

@@ -29,7 +29,6 @@ stream {
             default 127.0.0.1:8443;
             ~\bsmtp\b 127.0.0.1:465;
             ~\bimap\b 127.0.0.1:993;
-            ~\bssh\b 127.0.0.1:22;
         }
 
         server {

cmdeploy/src/cmdeploy/postfix/deployer.py

@@ -1,4 +1,4 @@
-from pyinfra.operations import apt, files, systemd
+from pyinfra.operations import apt, files, server, systemd
 
 from cmdeploy.basedeploy import Deployer, get_resource
 
@@ -52,6 +52,29 @@ class PostfixDeployer(Deployer):
         )
         need_restart |= header_cleanup.changed
 
+        lmtp_header_cleanup = files.put(
+            src=get_resource("postfix/lmtp_header_cleanup"),
+            dest="/etc/postfix/lmtp_header_cleanup",
+            user="root",
+            group="root",
+            mode="644",
+        )
+        need_restart |= lmtp_header_cleanup.changed
+
+        tls_policy_map = files.put(
+            name="Upload SMTP TLS Policy that accepts self-signed certificates for IP-only hosts",
+            src=get_resource("postfix/smtp_tls_policy_map"),
+            dest="/etc/postfix/smtp_tls_policy_map",
+            user="root",
+            group="root",
+            mode="644",
+        )
+        need_restart |= tls_policy_map.changed
+        if tls_policy_map.changed:
+            server.shell(
+                commands=["postmap /etc/postfix/smtp_tls_policy_map"],
+            )
+
         # Login map that 1:1 maps email address to login.
         login_map = files.put(
             src=get_resource("postfix/login_map"),
@@ -65,9 +88,17 @@ class PostfixDeployer(Deployer):
         restart_conf = files.put(
             name="postfix: restart automatically on failure",
             src=get_resource("service/10_restart.conf"),
-            dest="/etc/systemd/system/dovecot.service.d/10_restart.conf",
+            dest="/etc/systemd/system/postfix@.service.d/10_restart.conf",
         )
         self.daemon_reload = restart_conf.changed
+
+        # Validate postfix configuration before restart
+        if need_restart:
+            server.shell(
+                name="Validate postfix configuration",
+                # Extract stderr and quit with error if non-zero
+                commands=["""bash -c 'w=$(postconf 2>&1 >/dev/null); [[ -z "$w" ]] || { echo "$w"; false; }'"""],
+            )
         self.need_restart = need_restart
 
     def activate(self):

cmdeploy/src/cmdeploy/postfix/lmtp_header_cleanup

@@ -0,0 +1,3 @@
+/^DKIM-Signature:/            IGNORE
+/^Authentication-Results:/            IGNORE
+/^Received:/            IGNORE

cmdeploy/src/cmdeploy/postfix/main.cf.j2

@@ -25,7 +25,7 @@ smtp_tls_security_level=verify
 # <https://www.postfix.org/postconf.5.html#smtp_tls_servername>
 smtp_tls_servername = hostname
 smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
-smtp_tls_policy_maps = inline:{nauta.cu=may}
+smtp_tls_policy_maps = regexp:/etc/postfix/smtp_tls_policy_map
 smtp_tls_protocols = >=TLSv1.2
 smtp_tls_mandatory_protocols = >=TLSv1.2
 
@@ -64,7 +64,20 @@ alias_database = hash:/etc/aliases
 mydestination =
 
 relayhost = 
+{% if disable_ipv6 %}
+mynetworks = 127.0.0.0/8
+{% else %}
 mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
+{% endif %}
+{% if config.addr_v4 %}
+smtp_bind_address = {{ config.addr_v4 }}
+{% endif %}
+{% if config.addr_v6 %}
+smtp_bind_address6 = {{ config.addr_v6 }}
+{% endif %}
+{% if config.addr_v4 or config.addr_v6 %}
+smtp_bind_address_enforce = yes
+{% endif %}
 mailbox_size_limit = 0
 message_size_limit = {{config.max_message_size}}
 recipient_delimiter = +
@@ -77,6 +90,7 @@ inet_protocols = all
 
 virtual_transport = lmtp:unix:private/dovecot-lmtp
 virtual_mailbox_domains = {{ config.mail_domain }}
+lmtp_header_checks = regexp:/etc/postfix/lmtp_header_cleanup
 
 mua_client_restrictions = permit_sasl_authenticated, reject
 mua_sender_restrictions = reject_sender_login_mismatch, permit_sasl_authenticated, reject

cmdeploy/src/cmdeploy/postfix/smtp_tls_policy_map

@@ -0,0 +1,2 @@
+/^\[[^]]+\]$/ encrypt
+/^nauta\.cu$/    may

cmdeploy/src/cmdeploy/run.py

@@ -14,8 +14,9 @@ def main():
         importlib.resources.files("cmdeploy").joinpath("../../../chatmail.ini"),
     )
     disable_mail = bool(os.environ.get("CHATMAIL_DISABLE_MAIL"))
+    website_only = bool(os.environ.get("CHATMAIL_WEBSITE_ONLY"))
 
-    deploy_chatmail(config_path, disable_mail)
+    deploy_chatmail(config_path, disable_mail, website_only)
 
 
 if pyinfra.is_cli:

cmdeploy/src/cmdeploy/sshexec.py

@@ -85,16 +85,31 @@ class SSHExec:
 
 
 class LocalExec:
+    FuncError = FuncError
+
     def __init__(self, verbose=False, docker=False):
         self.verbose = verbose
         self.docker = docker
 
+    def __call__(self, call, kwargs=None, log_callback=None):
+        if kwargs is None:
+            kwargs = {}
+        return call(**kwargs)
+
     def logged(self, call, kwargs: dict):
+        title = call.__doc__
+        if not title:
+            title = call.__name__
         where = "locally"
         if self.docker:
             if call == remote.rdns.perform_initial_checks:
                 kwargs["pre_command"] = "docker exec chatmail "
                 where = "in docker"
         if self.verbose:
-            print(f"Running {where}: {call.__name__}(**{kwargs})")
+            print_stderr(f"Running {where}: {title}(**{kwargs})")
-        return call(**kwargs)
+            return self(call, kwargs, log_callback=print_stderr)
+        else:
+            print_stderr(title, end="")
+            res = self(call, kwargs, log_callback=remote.rshell.log_progress)
+            print_stderr()
+            return res

cmdeploy/src/cmdeploy/tests/online/test_1_basic.py

@@ -7,13 +7,13 @@ import time
 import pytest
 
 from cmdeploy import remote
-from cmdeploy.sshexec import SSHExec
+from cmdeploy.cmdeploy import get_sshexec
 
 
 class TestSSHExecutor:
     @pytest.fixture(scope="class")
     def sshexec(self, sshdomain):
-        return SSHExec(sshdomain)
+        return get_sshexec(sshdomain)
 
     def test_ls(self, sshexec):
         out = sshexec(call=remote.rdns.shell, kwargs=dict(command="ls"))
@@ -27,6 +27,7 @@ class TestSSHExecutor:
         assert res["A"] or res["AAAA"]
 
     def test_logged(self, sshexec, maildomain, capsys):
+        sshexec.verbose = False
         sshexec.logged(
             remote.rdns.perform_initial_checks, kwargs=dict(mail_domain=maildomain)
         )
@@ -52,6 +53,8 @@ class TestSSHExecutor:
                 remote.rdns.perform_initial_checks,
                 kwargs=dict(mail_domain=None),
             )
+        except AssertionError:
+            pass
         except sshexec.FuncError as e:
             assert "rdns.py" in str(e)
             assert "AssertionError" in str(e)
@@ -189,12 +192,14 @@ def test_exceed_rate_limit(cmsetup, gencreds, maildata, chatmail_config):
     mail = maildata(
         "encrypted.eml", from_addr=user1.addr, to_addr=user2.addr
     ).as_string()
-    for i in range(chatmail_config.max_user_send_per_minute + 5):
+
-        print("Sending mail", str(i))
+    start = time.time()
+    for i in range(chatmail_config.max_user_send_per_minute * 3):
+        print("Sending mail", str(i + 1), "at", time.time() - start, "s.")
         try:
             user1.smtp.sendmail(user1.addr, [user2.addr], mail)
         except smtplib.SMTPException as e:
-            if i < chatmail_config.max_user_send_per_minute:
+            if i < chatmail_config.max_user_send_burst_size:
                 pytest.fail(f"rate limit was exceeded too early with msg {i}")
             outcome = e.recipients[user2.addr]
             assert outcome[0] == 450

cmdeploy/src/cmdeploy/tests/online/test_2_deltachat.py

@@ -7,7 +7,7 @@ import pytest
 import requests
 
 from cmdeploy.remote import rshell
-from cmdeploy.sshexec import SSHExec
+from cmdeploy.cmdeploy import get_sshexec
 
 
 @pytest.fixture
@@ -17,6 +17,7 @@ def imap_mailbox(cmfactory):
     password = ac1.get_config("mail_pw")
     mailbox = imap_tools.MailBox(user.split("@")[1])
     mailbox.login(user, password)
+    mailbox.dc_ac = ac1
     return mailbox
 
 
@@ -89,7 +90,7 @@ class TestEndToEndDeltaChat:
         lp.sec(f"filling remote inbox for {user}")
         fn = f"7743102289.M843172P2484002.c20,S={quota},W=2398:2,"
         path = chatmail_config.mailboxes_dir.joinpath(user, "cur", fn)
-        sshexec = SSHExec(sshdomain)
+        sshexec = get_sshexec(sshdomain)
         sshexec(call=rshell.write_numbytes, kwargs=dict(path=str(path), num=120))
         res = sshexec(call=rshell.dovecot_recalc_quota, kwargs=dict(user=user))
         assert res["percent"] >= 100
@@ -121,6 +122,28 @@ class TestEndToEndDeltaChat:
         assert ch.id >= 10
         ac1._evtracker.wait_securejoin_inviter_progress(1000)
 
+    def test_dkim_header_stripped(self, cmfactory, maildomain2, lp, imap_mailbox):
+        """Test that if a DC address receives a message, it has no
+        DKIM-Signature and Authentication-Results headers."""
+        ac1 = cmfactory.new_online_configuring_account(cache=False)
+        cmfactory.switch_maildomain(maildomain2)
+        ac2 = cmfactory.new_online_configuring_account(cache=False)
+        cmfactory.bring_accounts_online()
+        chat = cmfactory.get_accepted_chat(ac1, imap_mailbox.dc_ac)
+        chat.send_text("message0")
+        chat2 = cmfactory.get_accepted_chat(ac2, imap_mailbox.dc_ac)
+        chat2.send_text("message1")
+
+        lp.sec("receive message with ac1...")
+        received = 0
+        while received < 2:
+            msgs = imap_mailbox.fetch()
+            for msg in msgs:
+                lp.sec(f"ac1 received msg from {msg.from_}")
+                received += 1
+                assert "authentication-results" not in msg.headers
+                assert "dkim-signature" not in msg.headers
+
     def test_read_receipts_between_instances(self, cmfactory, lp, maildomain2):
         ac1 = cmfactory.new_online_configuring_account(cache=False)
         cmfactory.switch_maildomain(maildomain2)

cmdeploy/src/cmdeploy/tests/online/test_3_status.py

@@ -5,7 +5,11 @@ from cmdeploy.cmdeploy import main
 
 def test_status_cmd(chatmail_config, capsys, request):
     os.chdir(request.config.invocation_params.dir)
-    assert main(["status"]) == 0
+    command = ["status"]
+    if os.getenv("CHATMAIL_SSH"):
+        command.append("--ssh-host")
+        command.append(os.getenv("CHATMAIL_SSH"))
+    assert main(command) == 0
     status_out = capsys.readouterr()
     print(status_out.out)
 

cmdeploy/src/cmdeploy/tests/plugin.py

@@ -54,8 +54,8 @@ def maildomain(chatmail_config):
 
 
 @pytest.fixture(scope="session")
-def sshdomain(maildomain):
+def sshdomain(chatmail_config):
-    return os.environ.get("CHATMAIL_SSH", maildomain)
+    return os.environ.get("CHATMAIL_SSH", chatmail_config.ssh_host)
 
 
 @pytest.fixture
@@ -337,8 +337,14 @@ class Remote:
 
     def iter_output(self, logcmd=""):
         getjournal = "journalctl -f" if not logcmd else logcmd
+        print(self.sshdomain)
+        match self.sshdomain:
+            case "@local": command = []
+            case "localhost": command = []
+            case _: command = ["ssh", f"root@{self.sshdomain}"]
+        [command.append(arg) for arg in getjournal.split()]
         self.popen = subprocess.Popen(
-            ["ssh", f"root@{self.sshdomain}", getjournal],
+            command,
             stdout=subprocess.PIPE,
         )
         while 1:

cmdeploy/src/cmdeploy/unbound/unbound.conf.j2

@@ -0,0 +1,4 @@
+# Managed by cmdeploy: disable IPv6 in unbound.
+server:
+  interface: 127.0.0.1
+  do-ip6: no

doc/source/getting_started.rst

@@ -21,12 +21,6 @@ You will need the following:
    1GB RAM, one CPU, and perhaps 10GB storage for a few thousand active
    chatmail addresses.
 
--  Key-based SSH authentication to the root user. You must add a
-   passphrase-protected private key to your local ssh-agent because you
-   can’t type in your passphrase during deployment. (An ed25519 private
-   key is required due to an `upstream bug in
-   paramiko <https://github.com/paramiko/paramiko/issues/2191>`_)
-
 
 Setup with ``scripts/cmdeploy``
 -------------------------------------
@@ -34,7 +28,8 @@ Setup with ``scripts/cmdeploy``
 We use ``chat.example.org`` as the chatmail domain in the following
 steps. Please substitute it with your own domain.
 
-1. Setup the initial DNS records. The following is an example in the
+1. Setup the initial DNS records for your relay.
+   The following is an example in the
    familiar BIND zone file format with a TTL of 1 hour (3600 seconds).
    Please substitute your domain and IP addresses.
 
@@ -45,29 +40,24 @@ steps. Please substitute it with your own domain.
        www.chat.example.org. 3600 IN CNAME chat.example.org.
        mta-sts.chat.example.org. 3600 IN CNAME chat.example.org.
 
-2. On your local PC, clone the repository and bootstrap the Python
+2. Login to the server with SSH, clone the repository and bootstrap the Python
    virtualenv.
 
    ::
 
+       ssh root@chat.example.org
        git clone https://github.com/chatmail/relay
        cd relay
        scripts/initenv.sh
 
-3. On your local PC, create chatmail configuration file
+3. Then, create a chatmail configuration file
    ``chatmail.ini``:
 
    ::
 
        scripts/cmdeploy init chat.example.org  # <-- use your domain
 
-4. Verify that SSH root login to your remote server works:
+4. Now run the deployment script to install the relay to the server:
-
-   ::
-
-       ssh root@chat.example.org  # <-- use your domain
-
-5. From your local PC, deploy the remote chatmail relay server:
 
    ::
 
@@ -78,27 +68,32 @@ steps. Please substitute it with your own domain.
    configure at your DNS provider (it can take some time until they are
    public).
 
-Other helpful commands
+Next Steps
-----------------------
+----------
 
-To check the status of your remotely running chatmail service:
+Now you should display and check all recommended DNS records
-
+to enable federation with other relays:
-::
-
-   scripts/cmdeploy status
-
-To display and check all recommended DNS records:
 
 ::
 
    scripts/cmdeploy dns
 
-To test whether your chatmail service is working correctly:
+You should also test whether your chatmail service is working correctly:
 
 ::
 
    scripts/cmdeploy test
 
+Other Helpful Commands
+----------------------
+
+To check the status of your chatmail relay:
+
+::
+
+   scripts/cmdeploy status
+
+
 To measure the performance of your chatmail service:
 
 ::
@@ -139,8 +134,9 @@ This starts a local live development cycle for chatmail web pages:
    directory and generating HTML files and copying assets to the
    ``www/build`` directory.
 
--  Starts a browser window automatically where you can “refresh” as
+-  if you are running scripts/cmdeploy webdev on the relay itself,
-   needed.
+   you need to configure a route in /etc/nginx/nginx.conf
+   to expose the build directory.
 
 Custom web pages
 ----------------
@@ -158,7 +154,7 @@ Disable automatic address creation
 --------------------------------------------------------
 
 If you need to stop address creation, e.g. because some script is wildly
-creating addresses, login with ssh and run:
+creating addresses, login with ssh to the relay and run:
 
 ::
 
@@ -166,4 +162,3 @@ creating addresses, login with ssh and run:
 
 Chatmail address creation will be denied while this file is present.
 
-

doc/source/overview.rst

@@ -42,6 +42,11 @@ The deployed system components of a chatmail relay are:
 -  Dovecot_ is the Mail Delivery Agent (MDA) and
    stores messages for users until they download them
 
+-  `filtermail <https://github.com/chatmail/filtermail>`_
+   prevents unencrypted email from leaving or entering the chatmail
+   service and is integrated into Postfix’s outbound and inbound mail
+   pipelines.
+
 -  Nginx_ shows the web page with privacy policy and additional information
 
 -  `acmetool <https://hlandau.github.io/acmetool/>`_ manages TLS
@@ -85,11 +90,6 @@ short overview of ``chatmaild`` services:
    <https://doc.dovecot.org/2.3/configuration_manual/authentication/dict/#complete-example-for-authenticating-via-a-unix-socket>`_
    to authenticate logins.
 
--  `filtermail <https://github.com/chatmail/relay/blob/main/chatmaild/src/chatmaild/filtermail.py>`_
-   prevents unencrypted email from leaving or entering the chatmail
-   service and is integrated into Postfix’s outbound and inbound mail
-   pipelines.
-
 -  `chatmail-metadata <https://github.com/chatmail/relay/blob/main/chatmaild/src/chatmaild/metadata.py>`_
    is contacted by a `Dovecot lua
    script <https://github.com/chatmail/relay/blob/main/cmdeploy/src/cmdeploy/dovecot/push_notification.lua>`_

doc/source/related.rst

@@ -14,10 +14,10 @@ We know of three work-in-progress alternative implementation efforts:
    it to support all of the features and configuration settings required
    to operate as a chatmail relay.
 
--  `Maddy-Chatmail <https://github.com/sadraiiali/maddy_chatmail>`_: a
+-  `Madmail <https://github.com/themadorg/madmail>`_: an
-   plugin for the `Maddy email server <https://maddy.email/>`_ which
+   experimental fork of `Maddy Mail Server <https://maddy.email/>`_, modified
-   aims to implement the chatmail relay features and configuration
+   for chatmail deployments.  It provides a single binary solution
-   options.
+   for running a chatmail relay.
 
 -  `Chatmail Cookbook <https://github.com/feld/chatmail-cookbook>`_:
    A Chef Cookbook implementing a relay server. The project follows the