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feat(postfix): bind to mail_domain's A/AAAA addresses for outbound mail

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Carry forward A/AAAA address from the DNS check to the postfix deploy
stage and set accordingly in main.cf.
This commit is contained in:
j4n
2026-02-11 10:11:16 +01:00
parent 1b0337a5f7
commit 06560dd071
3 changed files with 15 additions and 0 deletions
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3
chatmaild/src/chatmaild/config.py
View File

@@ -1,3 +1,4 @@
import os
from pathlib import Path from pathlib import Path
import iniconfig import iniconfig
@@ -43,6 +44,8 @@ class Config:
) )
self.mtail_address = params.get("mtail_address") self.mtail_address = params.get("mtail_address")
self.disable_ipv6 = params.get("disable_ipv6", "false").lower() == "true" 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.acme_email = params.get("acme_email", "")
self.imap_rawlog = params.get("imap_rawlog", "false").lower() == "true" self.imap_rawlog = params.get("imap_rawlog", "false").lower() == "true"
self.imap_compress = params.get("imap_compress", "false").lower() == "true" self.imap_compress = params.get("imap_compress", "false").lower() == "true"

3
cmdeploy/src/cmdeploy/cmdeploy.py
View File

@@ -101,6 +101,9 @@ def run_cmd(args, out):
env["CHATMAIL_WEBSITE_ONLY"] = "True" if args.website_only else "" env["CHATMAIL_WEBSITE_ONLY"] = "True" if args.website_only else ""
env["CHATMAIL_DISABLE_MAIL"] = "True" if args.disable_mail else "" env["CHATMAIL_DISABLE_MAIL"] = "True" if args.disable_mail else ""
env["CHATMAIL_REQUIRE_IROH"] = "True" if require_iroh 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() deploy_path = importlib.resources.files(__package__).joinpath("run.py").resolve()
pyinf = "pyinfra --dry" if args.dry_run else "pyinfra" pyinf = "pyinfra --dry" if args.dry_run else "pyinfra"

9
cmdeploy/src/cmdeploy/postfix/main.cf.j2
View File

@@ -69,6 +69,15 @@ mynetworks = 127.0.0.0/8
{% else %} {% else %}
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
{% endif %} {% 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 mailbox_size_limit = 0
message_size_limit = {{config.max_message_size}} message_size_limit = {{config.max_message_size}}
recipient_delimiter = + recipient_delimiter = +