minimize capabilities

2026-05-10 16:04:37 +00:00 · 2023-10-17 01:21:06 +02:00
8 changed files with 80 additions and 339 deletions
--- a/README.md
+++ b/README.md
@@ -47,13 +47,3 @@ Dovecot listens on ports 143(imap) and 993 (imaps).
 For DKIM you must add a DNS entry as found in /etc/opendkim/selector.txt on your chatmail instance.
 The above `scripts/deploy.sh` prints out the DKIM selector and DNS entry you
 need to setup with your DNS provider. 
-
-## Emergency Commands
-
-If you need to stop account creation,
-e.g. because some script is wildly creating accounts,
-just run `touch /tmp/nocreate`.
-You can remove the file
-as soon as the attacker was banned
-by different means.
-
--- a/chatmaild/pyproject.toml
+++ b/chatmaild/pyproject.toml
@@ -10,6 +10,7 @@ dependencies = [
 ]

 [project.scripts]
+doveauth = "chatmaild.doveauth:main"
 doveauth-dictproxy = "chatmaild.dictproxy:main"
 filtermail = "chatmaild.filtermail:main"

--- a/chatmaild/src/chatmaild/dictproxy.py
+++ b/chatmaild/src/chatmaild/dictproxy.py
@@ -1,4 +1,3 @@
-import logging
 import os
 import sys
 import json
@@ -12,8 +11,6 @@ import subprocess

 from .database import Database

-NOCREATE_FILE = "/etc/chatmail-nocreate"
-

 def encrypt_password(password: str):
    password = password.encode("ascii")
@@ -30,9 +27,6 @@ def encrypt_password(password: str):


 def create_user(db, user, password):
-    if os.path.exists(NOCREATE_FILE):
-        logging.warning(f"Didn't create account: {NOCREATE_FILE} exists. Delete the file to enable account creation.")
-        return
    with db.write_transaction() as conn:
        conn.create_user(user, password)
    return dict(home=f"/home/vmail/{user}", uid="vmail", gid="vmail", password=password)
--- a/chatmaild/src/chatmaild/doveauth.py
+++ b/chatmaild/src/chatmaild/doveauth.py
@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+import base64
+import sys
+
+from .database import Database
+
+
+def get_user_data(db, user):
+    with db.read_connection() as conn:
+        result = conn.get_user(user)
+    if result:
+        result["uid"] = "vmail"
+        result["gid"] = "vmail"
+    return result
+
+
+def create_user(db, user, password):
+    with db.write_transaction() as conn:
+        conn.create_user(user, password)
+    return dict(home=f"/home/vmail/{user}", uid="vmail", gid="vmail", password=password)
+
+
+def verify_user(db, user, password):
+    userdata = get_user_data(db, user)
+    if userdata:
+        if userdata.get("password") == password:
+            userdata["status"] = "ok"
+        else:
+            userdata["status"] = "fail"
+    else:
+        userdata = create_user(db, user, password)
+        userdata["status"] = "ok"
+
+    return userdata
+
+
+def lookup_user(db, user):
+    userdata = get_user_data(db, user)
+    if userdata:
+        userdata["status"] = "ok"
+    else:
+        userdata["status"] = "fail"
+    return userdata
+
+
+def dump_result(res):
+    for key, value in res.items():
+        print(f"{key}={value}")
+
+
+def main():
+    db = Database("/home/vmail/passdb.sqlite")
+    if sys.argv[1] == "hexauth":
+        login = base64.b16decode(sys.argv[2]).decode()
+        password = base64.b16decode(sys.argv[3]).decode()
+        res = verify_user(db, login, password)
+        dump_result(res)
+    elif sys.argv[1] == "hexlookup":
+        login = base64.b16decode(sys.argv[2]).decode()
+        res = lookup_user(db, login)
+        dump_result(res)
+
+
+if __name__ == "__main__":
+    main()
--- a/chatmaild/src/chatmaild/test_doveauth.py
+++ b/chatmaild/src/chatmaild/test_doveauth.py
@@ -1,9 +1,7 @@
-import os
-
 import pytest

-import chatmaild.dictproxy
-from .dictproxy import get_user_data, lookup_passdb
+from .dictproxy import get_user_data
+from .doveauth import verify_user
 from .database import Database, DBError


@@ -15,31 +13,16 @@ def db(tmpdir):


 def test_basic(db):
-    chatmaild.dictproxy.NOCREATE_FILE = "/tmp/nocreate"
-    if os.path.exists(chatmaild.dictproxy.NOCREATE_FILE):
-        os.remove(chatmaild.dictproxy.NOCREATE_FILE)
-    lookup_passdb(db, "link2xt@c1.testrun.org", "asdf")
+    verify_user(db, "link2xt@c1.testrun.org", "asdf")
    data = get_user_data(db, "link2xt@c1.testrun.org")
    assert data


-def test_dont_overwrite_password_on_wrong_login(db):
-    """Test that logging in with a different password doesn't create a new user"""
-    res = lookup_passdb(db, "newuser1@something.org", "kajdlkajsldk12l3kj1983")
-    assert res["password"]
-    res2 = lookup_passdb(db, "newuser1@something.org", "kajdlqweqwe")
-    # this function always returns a password hash, which is actually compared by dovecot.
-    assert res["password"] == res2["password"]
-
-
-def test_nocreate_file(db):
-    chatmaild.dictproxy.NOCREATE_FILE = "/tmp/nocreate"
-    with open(chatmaild.dictproxy.NOCREATE_FILE, "w+") as f:
-        f.write("")
-    assert os.path.exists(chatmaild.dictproxy.NOCREATE_FILE)
-    lookup_passdb(db, "newuser1@something.org", "kajdlqweqwe")
-    assert not get_user_data(db, "newuser1@something.org")
-    os.remove(chatmaild.dictproxy.NOCREATE_FILE)
+def test_verify_or_create(db):
+    res = verify_user(db, "newuser1@something.org", "kajdlkajsldk12l3kj1983")
+    assert res["status"] == "ok"
+    res = verify_user(db, "newuser1@something.org", "kajdlqweqwe")
+    assert res["status"] == "fail"


 def test_db_version(db):
--- a/online-tests/test_0_login.py
+++ b/online-tests/test_0_login.py
@@ -1,5 +1,3 @@
-import smtplib
-
 import pytest


@@ -36,296 +34,3 @@ def test_login_same_password(imap_or_smtp, gencreds):
    imap_or_smtp.login(user1, password1)
    imap_or_smtp.connect()
    imap_or_smtp.login(user2, password1)
-
-
-@pytest.mark.parametrize(
-    ("authenticated", "existing_from", "outside_to", "log_msg"),
-    [
-        (False, False, False, "Sending message with forged FROM of chatmail user to chatmail user"),
-        (False, True, False, "Sending message with forged FROM of outside user to chatmail user"),
-        (False, False, True, "Sending message with forged FROM of chatmail user to outside user"),
-        (False, True, True, "Sending message with forged FROM of outside user to outside user"),
-        (True, False, False, "Sending authenticated message with forged FROM of chatmail user to chatmail user"),
-        (True, True, False, "Sending authenticated message with forged FROM of outside user to chatmail user"),
-        (True, False, True, "Sending authenticated message with forged FROM of chatmail user to outside user"),
-        (True, True, True, "Sending authenticated message with forged FROM of outside user to outside user"),
-    ]
-)
-def test_send_with_forged_from(smtp, gencreds, lp, authenticated, existing_from, outside_to, log_msg):
-    """Test that users can't impersonate each other."""
-    if outside_to:
-        to_addr = "recipient@example.org"
-    else:
-        to_addr, password = gencreds()
-        smtp.connect()
-        smtp.login(to_addr, password)
-        smtp.conn.close()
-
-    if existing_from:
-        from_addr, password = gencreds()
-        smtp.connect()
-        smtp.login(from_addr, password)
-        smtp.conn.close()
-    else:
-        from_addr = f"9d8znohcoimafiilvsjfovaniufsmdj@{smtp.host}"
-
-    smtp.connect()
-    if authenticated:
-        attacker_addr, password = gencreds()
-        smtp.login(attacker_addr, password)
-
-    mail = "\r\n".join([
-        "Subject: ...",
-        f"From: <{from_addr}>",
-        f"To: <{to_addr}>",
-        "Date: Sun, 15 Oct 2023 16:43:21 +0000",
-        "Message-ID: <Mr.UVyJWZmkCKM.hGzNc6glBE_@c2.testrun.org>",
-        "In-Reply-To: <Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>",
-        "References: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>",
-        "\t<Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>",
-        "Chat-Version: 1.0",
-        f"Autocrypt: addr={from_addr}; prefer-encrypt=mutual;",
-        "\tkeydata=xjMEZSwWjhYJKwYBBAHaRw8BAQdAQBEhqeJh0GueHB6kF/DUQqYCxARNBVokg/AzT+7LqH",
-        "\trNFzxiYXJiYXpAYzIudGVzdHJ1bi5vcmc+wosEEBYIADMCGQEFAmUsFo4CGwMECwkIBwYVCAkKCwID",
-        "\tFgIBFiEEFTfUNvVnY3b9F7yHnmme1PfUhX8ACgkQnmme1PfUhX9A4AEAnHWHp49eBCMHK5t66gYPiW",
-        "\tXQuB1mwUjzGfYWB+0RXUoA/0xcQ3FbUNlGKW7Blp6eMFfViv6Mv2d3kNSXACB6nmcMzjgEZSwWjhIK",
-        "\tKwYBBAGXVQEFAQEHQBpY5L2M1XHo0uxf8SX1wNLBp/OVvidoWHQF2Jz+kJsUAwEIB8J4BBgWCAAgBQ",
-        "\tJlLBaOAhsMFiEEFTfUNvVnY3b9F7yHnmme1PfUhX8ACgkQnmme1PfUhX/INgEA37AJaNvruYsJVanP",
-        "\tIXnYw4CKd55UAwl8Zcy+M2diAbkA/0fHHcGV4r78hpbbL1Os52DPOdqYQRauIeJUeG+G6bQO",
-        "MIME-Version: 1.0",
-        'Content-Type: multipart/encrypted; protocol="application/pgp-encrypted";',
-        '\tboundary="YFrteb74qSXmggbOxZL9dRnhymywAi"',
-        "",
-        "",
-        "--YFrteb74qSXmggbOxZL9dRnhymywAi",
-        "Content-Description: PGP/MIME version identification",
-        "Content-Type: application/pgp-encrypted",
-        "",
-        "Version: 1",
-        "",
-        "",
-        "--YFrteb74qSXmggbOxZL9dRnhymywAi",
-        "Content-Description: OpenPGP encrypted message",
-        'Content-Disposition: inline; filename="encrypted.asc";',
-        'Content-Type: application/octet-stream; name="encrypted.asc"',
-        "",
-        "-----BEGIN PGP MESSAGE-----",
-        "",
-        "wU4DhW3gBZ/VvCYSAQdA8bMs2spwbKdGjVsL1ByPkNrqD7frpB73maeL6I6SzDYg",
-        "O5G53tv339RdKq3WRcCtEEvxjHlUx2XNwXzC04BpmfvBTgNfPUyLDzjXnxIBB0Ae",
-        "8ymwGvXMCCimHXN0Dg8Ui62KOi03h0UgheoHWovJSCDF4CKre/xtFr3nL7lq/PKI",
-        "JsjVNz7/RK9FSXF6WwfONtLCyQGEuVAsB/KXfCBEyfKhaMwGHvhujRidGW5uV1no",
-        "lMGl3ODmo29Lgeu2uSE7EpJRZoe6hU6ddmBkqxax61ZtkaFlGFFpdo2K8balNNdz",
-        "ZsJ/9mmI9x3oOJ4/l1nhQbUO9ADbs7gJhFdV5Qkp30b5fCI7bU+aoe1ccBbLe/WM",
-        "YUty1PqcuQT7XjA+XmYuL261tvW8pBetT+i33/E2d8PzzYt2IuK9qeevyS+yxdwA",
-        "kfwejFWzzsUlJaDxs1x4XOxkMgSj+jo+g12dFOb7fyClsAnq23iDb8AuaT/BScAI",
-        "+lO+gher69+6LmM7VGHLG5k762J1jTaQCaKt1s8TAWV99Eo4491vL6fyvk3l/Cfg",
-        "RXSwiWFgj19Pn0Rq7CD9v22UE2vdUMBTcV4aw79mClk1YQ23jbF0y5DCjPdJ62Zo",
-        "tskBgFt3NoWV80jZ76zIBLrrjLwCCll8JjJtFwSkt2GX5RFBsVa4A8IDht9RtEk7",
-        "rrHgbSZQfkauEi/mH3/6CDZoLqSHudUZ7d4MaJwun1TkFYGe2ORwGJd4OBj3oGJp",
-        "H8YBwCpk///L/fKjX0Gg3M8nrpM4wrRFhPKidAgO/kcm25X4+ZHlVkWBTCt5RWKI",
-        "fHh6oLDZCqCfcgMkE1KKmwfIHaUkhq5BPRigwy6i5dh1DM4+1UCLh3dxzVbqE9b9",
-        "61NB19nXdRtDA2sOUnj9ve6m/wEPyCb6/zBQZqvCBYb1/AjdXpUrFT+DbpfyxaXN",
-        "XfhDVb5mNqNM/IVj0V5fvTc6vOfYbzQtPm10H+FdWWfb+rJRfyC3MA2w2IqstFe3",
-        "w3bu2iE6CQvSqRvge+ZqLKt/NqYwOURiUmpuklbl3kPJ97+mfKWoiqk8Iz1VY+bb",
-        "NMUC7aoGv+jcoj+WS6PYO8N6BeRVUUB3ZJSf8nzjgxm1/BcM+UD3BPrlhT11ODRs",
-        "baifGbprMWwt3dhb8cQgRT8GPdpO1OsDkzL6iikMjLHWWiA99GV6ruiHsIPw6boW",
-        "A6/uSOskbDHOROotKmddGTBd0iiHXAoQsJFt1ZjUkt6EHrgWs+GAvrvKpXs1mrz8",
-        "uj3GwEFrHS+Xuf2UDgpszYT3hI2cL/kUtGakVR7m7vVMZqXBUbZdGAEb1PZNPwsI",
-        "E4aMK02+EVB+tSN4Fzj99N2YD0inVYt+oPjr2tHhUS6aSGBNS/48Ki47DOg4Sxkn",
-        "lkOWnEbCD+XTnbDd",
-        "=agR5",
-        "-----END PGP MESSAGE-----",
-        "",
-        "",
-        "--YFrteb74qSXmggbOxZL9dRnhymywAi--",
-        "",
-        "",
-    ]).encode()
-
-    if not authenticated:
-        smtperror = smtplib.SMTPRecipientsRefused
-    else:
-        smtperror = smtplib.SMTPException
-
-    lp.sec(log_msg)
-    with pytest.raises(smtperror):
-        smtp.conn.sendmail(from_addr, to_addr, mail)
-
-
-def test_no_internal_rate_limit(smtp, gencreds):
-    """Test that there is no rate limit between accounts on the same chatmail server."""
-    to_addr, password = gencreds()
-    smtp.connect()
-    smtp.login(to_addr, password)
-
-    user, password = gencreds()
-    smtp.connect()
-    smtp.login(user, password)
-
-    mail = "\r\n".join(
-        [
-            "Subject: ...",
-            f"From: <{user}>",
-            f"To: <{to_addr}>",
-            "Date: Sun, 15 Oct 2023 16:43:21 +0000",
-            "Message-ID: <Mr.UVyJWZmkCKM.hGzNc6glBE_@c2.testrun.org>",
-            "In-Reply-To: <Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>",
-            "References: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>",
-            "\t<Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>",
-            "Chat-Version: 1.0",
-            f"Autocrypt: addr={user}; prefer-encrypt=mutual;",
-            "\tkeydata=xjMEZSwWjhYJKwYBBAHaRw8BAQdAQBEhqeJh0GueHB6kF/DUQqYCxARNBVokg/AzT+7LqH",
-            "\trNFzxiYXJiYXpAYzIudGVzdHJ1bi5vcmc+wosEEBYIADMCGQEFAmUsFo4CGwMECwkIBwYVCAkKCwID",
-            "\tFgIBFiEEFTfUNvVnY3b9F7yHnmme1PfUhX8ACgkQnmme1PfUhX9A4AEAnHWHp49eBCMHK5t66gYPiW",
-            "\tXQuB1mwUjzGfYWB+0RXUoA/0xcQ3FbUNlGKW7Blp6eMFfViv6Mv2d3kNSXACB6nmcMzjgEZSwWjhIK",
-            "\tKwYBBAGXVQEFAQEHQBpY5L2M1XHo0uxf8SX1wNLBp/OVvidoWHQF2Jz+kJsUAwEIB8J4BBgWCAAgBQ",
-            "\tJlLBaOAhsMFiEEFTfUNvVnY3b9F7yHnmme1PfUhX8ACgkQnmme1PfUhX/INgEA37AJaNvruYsJVanP",
-            "\tIXnYw4CKd55UAwl8Zcy+M2diAbkA/0fHHcGV4r78hpbbL1Os52DPOdqYQRauIeJUeG+G6bQO",
-            "MIME-Version: 1.0",
-            'Content-Type: multipart/encrypted; protocol="application/pgp-encrypted";',
-            '\tboundary="YFrteb74qSXmggbOxZL9dRnhymywAi"',
-            "",
-            "",
-            "--YFrteb74qSXmggbOxZL9dRnhymywAi",
-            "Content-Description: PGP/MIME version identification",
-            "Content-Type: application/pgp-encrypted",
-            "",
-            "Version: 1",
-            "",
-            "",
-            "--YFrteb74qSXmggbOxZL9dRnhymywAi",
-            "Content-Description: OpenPGP encrypted message",
-            'Content-Disposition: inline; filename="encrypted.asc";',
-            'Content-Type: application/octet-stream; name="encrypted.asc"',
-            "",
-            "-----BEGIN PGP MESSAGE-----",
-            "",
-            "wU4DhW3gBZ/VvCYSAQdA8bMs2spwbKdGjVsL1ByPkNrqD7frpB73maeL6I6SzDYg",
-            "O5G53tv339RdKq3WRcCtEEvxjHlUx2XNwXzC04BpmfvBTgNfPUyLDzjXnxIBB0Ae",
-            "8ymwGvXMCCimHXN0Dg8Ui62KOi03h0UgheoHWovJSCDF4CKre/xtFr3nL7lq/PKI",
-            "JsjVNz7/RK9FSXF6WwfONtLCyQGEuVAsB/KXfCBEyfKhaMwGHvhujRidGW5uV1no",
-            "lMGl3ODmo29Lgeu2uSE7EpJRZoe6hU6ddmBkqxax61ZtkaFlGFFpdo2K8balNNdz",
-            "ZsJ/9mmI9x3oOJ4/l1nhQbUO9ADbs7gJhFdV5Qkp30b5fCI7bU+aoe1ccBbLe/WM",
-            "YUty1PqcuQT7XjA+XmYuL261tvW8pBetT+i33/E2d8PzzYt2IuK9qeevyS+yxdwA",
-            "kfwejFWzzsUlJaDxs1x4XOxkMgSj+jo+g12dFOb7fyClsAnq23iDb8AuaT/BScAI",
-            "+lO+gher69+6LmM7VGHLG5k762J1jTaQCaKt1s8TAWV99Eo4491vL6fyvk3l/Cfg",
-            "RXSwiWFgj19Pn0Rq7CD9v22UE2vdUMBTcV4aw79mClk1YQ23jbF0y5DCjPdJ62Zo",
-            "tskBgFt3NoWV80jZ76zIBLrrjLwCCll8JjJtFwSkt2GX5RFBsVa4A8IDht9RtEk7",
-            "rrHgbSZQfkauEi/mH3/6CDZoLqSHudUZ7d4MaJwun1TkFYGe2ORwGJd4OBj3oGJp",
-            "H8YBwCpk///L/fKjX0Gg3M8nrpM4wrRFhPKidAgO/kcm25X4+ZHlVkWBTCt5RWKI",
-            "fHh6oLDZCqCfcgMkE1KKmwfIHaUkhq5BPRigwy6i5dh1DM4+1UCLh3dxzVbqE9b9",
-            "61NB19nXdRtDA2sOUnj9ve6m/wEPyCb6/zBQZqvCBYb1/AjdXpUrFT+DbpfyxaXN",
-            "XfhDVb5mNqNM/IVj0V5fvTc6vOfYbzQtPm10H+FdWWfb+rJRfyC3MA2w2IqstFe3",
-            "w3bu2iE6CQvSqRvge+ZqLKt/NqYwOURiUmpuklbl3kPJ97+mfKWoiqk8Iz1VY+bb",
-            "NMUC7aoGv+jcoj+WS6PYO8N6BeRVUUB3ZJSf8nzjgxm1/BcM+UD3BPrlhT11ODRs",
-            "baifGbprMWwt3dhb8cQgRT8GPdpO1OsDkzL6iikMjLHWWiA99GV6ruiHsIPw6boW",
-            "A6/uSOskbDHOROotKmddGTBd0iiHXAoQsJFt1ZjUkt6EHrgWs+GAvrvKpXs1mrz8",
-            "uj3GwEFrHS+Xuf2UDgpszYT3hI2cL/kUtGakVR7m7vVMZqXBUbZdGAEb1PZNPwsI",
-            "E4aMK02+EVB+tSN4Fzj99N2YD0inVYt+oPjr2tHhUS6aSGBNS/48Ki47DOg4Sxkn",
-            "lkOWnEbCD+XTnbDd",
-            "=agR5",
-            "-----END PGP MESSAGE-----",
-            "",
-            "",
-            "--YFrteb74qSXmggbOxZL9dRnhymywAi--",
-            "",
-            "",
-        ]
-    ).encode()
-    for i in range(100):
-        print("Sending mail", str(i))
-        smtp.conn.sendmail(user, to_addr, mail)
-
-
-@pytest.mark.xfail(reason="No rate limit at the moment")
-def test_exceed_rate_limit(smtp, gencreds):
-    """Test that the outbound rate limit is exceeded if we send a lot of messages at once."""
-    user, password = gencreds()
-    smtp.connect()
-    smtp.login(user, password)
-
-    to_addr = "foobar@example.org"
-    mail = "\r\n".join(
-        [
-            "Subject: ...",
-            f"From: <{user}>",
-            f"To: <{to_addr}>",
-            "Date: Sun, 15 Oct 2023 16:43:21 +0000",
-            "Message-ID: <Mr.UVyJWZmkCKM.hGzNc6glBE_@c2.testrun.org>",
-            "In-Reply-To: <Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>",
-            "References: <Mr.3gckbNy5bch.uK3Hd2Ws6-w@c2.testrun.org>",
-            "\t<Mr.MvmCz-GQbi_.6FGRkhDf05c@c2.testrun.org>",
-            "Chat-Version: 1.0",
-            f"Autocrypt: addr={user}; prefer-encrypt=mutual;",
-            "\tkeydata=xjMEZSwWjhYJKwYBBAHaRw8BAQdAQBEhqeJh0GueHB6kF/DUQqYCxARNBVokg/AzT+7LqH",
-            "\trNFzxiYXJiYXpAYzIudGVzdHJ1bi5vcmc+wosEEBYIADMCGQEFAmUsFo4CGwMECwkIBwYVCAkKCwID",
-            "\tFgIBFiEEFTfUNvVnY3b9F7yHnmme1PfUhX8ACgkQnmme1PfUhX9A4AEAnHWHp49eBCMHK5t66gYPiW",
-            "\tXQuB1mwUjzGfYWB+0RXUoA/0xcQ3FbUNlGKW7Blp6eMFfViv6Mv2d3kNSXACB6nmcMzjgEZSwWjhIK",
-            "\tKwYBBAGXVQEFAQEHQBpY5L2M1XHo0uxf8SX1wNLBp/OVvidoWHQF2Jz+kJsUAwEIB8J4BBgWCAAgBQ",
-            "\tJlLBaOAhsMFiEEFTfUNvVnY3b9F7yHnmme1PfUhX8ACgkQnmme1PfUhX/INgEA37AJaNvruYsJVanP",
-            "\tIXnYw4CKd55UAwl8Zcy+M2diAbkA/0fHHcGV4r78hpbbL1Os52DPOdqYQRauIeJUeG+G6bQO",
-            "MIME-Version: 1.0",
-            'Content-Type: multipart/encrypted; protocol="application/pgp-encrypted";',
-            '\tboundary="YFrteb74qSXmggbOxZL9dRnhymywAi"',
-            "",
-            "",
-            "--YFrteb74qSXmggbOxZL9dRnhymywAi",
-            "Content-Description: PGP/MIME version identification",
-            "Content-Type: application/pgp-encrypted",
-            "",
-            "Version: 1",
-            "",
-            "",
-            "--YFrteb74qSXmggbOxZL9dRnhymywAi",
-            "Content-Description: OpenPGP encrypted message",
-            'Content-Disposition: inline; filename="encrypted.asc";',
-            'Content-Type: application/octet-stream; name="encrypted.asc"',
-            "",
-            "-----BEGIN PGP MESSAGE-----",
-            "",
-            "wU4DhW3gBZ/VvCYSAQdA8bMs2spwbKdGjVsL1ByPkNrqD7frpB73maeL6I6SzDYg",
-            "O5G53tv339RdKq3WRcCtEEvxjHlUx2XNwXzC04BpmfvBTgNfPUyLDzjXnxIBB0Ae",
-            "8ymwGvXMCCimHXN0Dg8Ui62KOi03h0UgheoHWovJSCDF4CKre/xtFr3nL7lq/PKI",
-            "JsjVNz7/RK9FSXF6WwfONtLCyQGEuVAsB/KXfCBEyfKhaMwGHvhujRidGW5uV1no",
-            "lMGl3ODmo29Lgeu2uSE7EpJRZoe6hU6ddmBkqxax61ZtkaFlGFFpdo2K8balNNdz",
-            "ZsJ/9mmI9x3oOJ4/l1nhQbUO9ADbs7gJhFdV5Qkp30b5fCI7bU+aoe1ccBbLe/WM",
-            "YUty1PqcuQT7XjA+XmYuL261tvW8pBetT+i33/E2d8PzzYt2IuK9qeevyS+yxdwA",
-            "kfwejFWzzsUlJaDxs1x4XOxkMgSj+jo+g12dFOb7fyClsAnq23iDb8AuaT/BScAI",
-            "+lO+gher69+6LmM7VGHLG5k762J1jTaQCaKt1s8TAWV99Eo4491vL6fyvk3l/Cfg",
-            "RXSwiWFgj19Pn0Rq7CD9v22UE2vdUMBTcV4aw79mClk1YQ23jbF0y5DCjPdJ62Zo",
-            "tskBgFt3NoWV80jZ76zIBLrrjLwCCll8JjJtFwSkt2GX5RFBsVa4A8IDht9RtEk7",
-            "rrHgbSZQfkauEi/mH3/6CDZoLqSHudUZ7d4MaJwun1TkFYGe2ORwGJd4OBj3oGJp",
-            "H8YBwCpk///L/fKjX0Gg3M8nrpM4wrRFhPKidAgO/kcm25X4+ZHlVkWBTCt5RWKI",
-            "fHh6oLDZCqCfcgMkE1KKmwfIHaUkhq5BPRigwy6i5dh1DM4+1UCLh3dxzVbqE9b9",
-            "61NB19nXdRtDA2sOUnj9ve6m/wEPyCb6/zBQZqvCBYb1/AjdXpUrFT+DbpfyxaXN",
-            "XfhDVb5mNqNM/IVj0V5fvTc6vOfYbzQtPm10H+FdWWfb+rJRfyC3MA2w2IqstFe3",
-            "w3bu2iE6CQvSqRvge+ZqLKt/NqYwOURiUmpuklbl3kPJ97+mfKWoiqk8Iz1VY+bb",
-            "NMUC7aoGv+jcoj+WS6PYO8N6BeRVUUB3ZJSf8nzjgxm1/BcM+UD3BPrlhT11ODRs",
-            "baifGbprMWwt3dhb8cQgRT8GPdpO1OsDkzL6iikMjLHWWiA99GV6ruiHsIPw6boW",
-            "A6/uSOskbDHOROotKmddGTBd0iiHXAoQsJFt1ZjUkt6EHrgWs+GAvrvKpXs1mrz8",
-            "uj3GwEFrHS+Xuf2UDgpszYT3hI2cL/kUtGakVR7m7vVMZqXBUbZdGAEb1PZNPwsI",
-            "E4aMK02+EVB+tSN4Fzj99N2YD0inVYt+oPjr2tHhUS6aSGBNS/48Ki47DOg4Sxkn",
-            "lkOWnEbCD+XTnbDd",
-            "=agR5",
-            "-----END PGP MESSAGE-----",
-            "",
-            "",
-            "--YFrteb74qSXmggbOxZL9dRnhymywAi--",
-            "",
-            "",
-        ]
-    ).encode()
-    for i in range(100):
-        print("Sending mail", str(i))
-        try:
-            smtp.conn.sendmail(user, to_addr, mail)
-        except smtplib.SMTPSenderRefused as e:
-            if i == 0:
-                pytest.fail(f"rate limit was exceeded too early with msg {i} - maybe wait a minute before testing?")
-            if i < 41:
-                pytest.fail(f"rate limit was exceeded too early with msg {i}")
-            assert e.smtp_code == 450
-            assert b'4.7.1 Error: too much mail from' in e.smtp_error
-            return
-    pytest.fail("Rate limit was not exceeded")
--- a/scripts/init.sh
+++ b/scripts/init.sh
@@ -6,7 +6,6 @@ deploy-chatmail/venv/bin/pip install -e deploy-chatmail
 deploy-chatmail/venv/bin/pip install -e chatmaild

 python3 -m venv chatmaild/venv
-sudo apt install -y dovecot-core && sudo systemctl disable --now dovecot
 chatmaild/venv/bin/pip install --upgrade pytest build 'setuptools>=68'
 chatmaild/venv/bin/pip install -e chatmaild

--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -1,3 +1,7 @@
 #!/bin/bash
-chatmaild/venv/bin/pytest chatmaild/ $@
-online-tests/venv/bin/pytest online-tests/ -vrx --durations=5 $@
+set -e
+pushd chatmaild/src/chatmaild
+../../venv/bin/pytest
+popd
+
+online-tests/venv/bin/pytest online-tests/ -vrx --durations=5