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fix: `setup email restrict` configs should only prepend once (#4379) 

* fix: `setup email restrict` configs should only prepend once

* chore: Prepend to our custom parameter variant to retain applying to all `smtpd` ports

---------

Co-authored-by: Georg Lauterbach <44545919+georglauterbach@users.noreply.github.com>
This commit is contained in:
Brennan Kinney 2025-03-02 01:55:13 +13:00 committed by GitHub
parent 309b5a9086
commit 5686a4097a
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2 changed files with 9 additions and 4 deletions
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5
target/postfix/main.cf
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@ -68,9 +68,10 @@ smtpd_forbid_bare_newline = yes
# smtpd_forbid_bare_newline_exclusions = $mynetworks
# Custom defined parameters for DMS:
# reject_unknown_sender_domain: https://github.com/docker-mailserver/docker-mailserver/issues/3716#issuecomment-1868033234
# Custom sender restrictions overview: https://github.com/docker-mailserver/docker-mailserver/pull/4379#issuecomment-2670365917
# `reject_unknown_sender_domain`: https://github.com/docker-mailserver/docker-mailserver/issues/3716#issuecomment-1868033234
dms_smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unknown_sender_domain
# Submission ports 587 and 465 support for SPOOF_PROTECTION=1
# `SPOOF_PROTECTION=1` support requires prepending `reject_authenticated_sender_login_mismatch`
mua_sender_restrictions = reject_authenticated_sender_login_mismatch, $dms_smtpd_sender_restrictions
# Postscreen settings to drop zombies/open relays/spam early

8
target/scripts/startup/setup.d/postfix.sh
View File

@ -93,13 +93,17 @@ EOF
function _setup_postfix_late() {
_log 'debug' 'Configuring Postfix (late setup)'
# These two config files are `access` database tables managed via `setup email restrict`:
# NOTE: Prepends to existing restrictions, thus has priority over other permit/reject policies that follow.
# https://www.postfix.org/postconf.5.html#smtpd_sender_restrictions
# https://www.postfix.org/access.5.html
__postfix__log 'trace' 'Configuring user access'
if [[ -f /tmp/docker-mailserver/postfix-send-access.cf ]]; then
sed -i -E 's|(smtpd_sender_restrictions =)|\1 check_sender_access texthash:/tmp/docker-mailserver/postfix-send-access.cf,|' /etc/postfix/main.cf
sed -i -E 's|^(dms_smtpd_sender_restrictions =)|\1 check_sender_access texthash:/tmp/docker-mailserver/postfix-send-access.cf,|' /etc/postfix/main.cf
fi
if [[ -f /tmp/docker-mailserver/postfix-receive-access.cf ]]; then
sed -i -E 's|(smtpd_recipient_restrictions =)|\1 check_recipient_access texthash:/tmp/docker-mailserver/postfix-receive-access.cf,|' /etc/postfix/main.cf
sed -i -E 's|^(dms_smtpd_recipient_restrictions =)|\1 check_recipient_access texthash:/tmp/docker-mailserver/postfix-receive-access.cf,|' /etc/postfix/main.cf
fi
__postfix__log 'trace' 'Configuring relay host'