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selfpost/deploy/antispam/docker-compose.antispam.yml
T
mix 0d98d92642
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Add optional inbound relay (backup-MX) behind INBOUND_RELAY_ENABLE.
Port 25 accepts only configured domains and listed recipients, then forwards to an upstream; the outbound path is unchanged when the flag is off.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-08-17 23:17:30 +03:00

30 lines
1.2 KiB
YAML

# Optional anti-spam sidecar for inbound relay (docs/plans/inbound-relay.md).
#
# SelfPost does not ship or start an anti-spam engine. This fragment brings up
# rspamd next to SelfPost and points the inbound smtpd milter at it. Merge it
# only when you want filtering on port 25:
#
# docker compose -f docker-compose.yml -f antispam/docker-compose.antispam.yml up -d
#
# Requires INBOUND_RELAY_ENABLE=true in .env. The milter sees the real client
# IP, HELO and PTR — unlike the upstream, which only sees SelfPost's address.
#
# Pin the rspamd tag the same way the SelfPost image is pinned; bump it
# deliberately. Default milter action is fail-open (accept) so a down sidecar
# does not block backup-MX. Set INBOUND_ANTISPAM_MILTER_ACTION=tempfail to
# defer instead.
services:
selfpost:
environment:
INBOUND_RELAY_ENABLE: "${INBOUND_RELAY_ENABLE:-true}"
INBOUND_ANTISPAM_MILTER: "${INBOUND_ANTISPAM_MILTER:-inet:antispam:11332}"
INBOUND_ANTISPAM_MILTER_ACTION: "${INBOUND_ANTISPAM_MILTER_ACTION:-accept}"
depends_on:
- antispam
antispam:
image: rspamd/rspamd:3.11
restart: unless-stopped
# No host ports: only SelfPost talks to the milter on the compose network.