Step 3/12 of docs/plans/inbound-antispam-panel.md. The panel serves a second milter while the inbound relay is on (internal/milter/inbound.go, socket INBOUND_JOURNAL_MILTER_SOCKET, default /run/selfpost/inbound-journal.sock). build/postfix-config.sh puts it last on port 25, after the optional antispam milter, with default_action=accept; postfix-wrapper.sh waits for its socket. At end-of-message it writes one inbound_spam_log row per recipient at an inbound domain - other port-25 recipients (DMARC report addresses) get none - and always accepts. With a filter attached it reads the verdict from X-Rspamd-Action and X-Spamd-Result (action, score, up to six weighted symbols, only what the patterns recognise, 255 bytes); without one those headers are the sender's and are not read. The plan named X-Rspamd-Score, which rspamd does not have. The antispam compose fragment mounts rspamd/milter_headers.conf into the sidecar so that it adds the two headers (checked in rspamd 3.11: both routines exist and remove a sender's own headers of those names). Store: InsertInboundSpam, IsInboundDomain. Checked on the test server, uncommitted tree: go vet ./... ok, go test ./... ok (22 packages), make e2e ok - the relayed message of inbound_relay_delivers_and_refuses has its journal row (accept by selfpost) and the DMARC report sent through the same listener has none. Not yet seen in a real run: a verdict written by rspamd reaching this milter. The e2e stand has no filter, and the test server's only inbound domain has no upstream, so it accepts no mail. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
40 lines
1.4 KiB
Bash
40 lines
1.4 KiB
Bash
#!/bin/sh
|
|
# Postfix start wrapper: solves the cold-start race where Postfix would try to
|
|
# reach the milter sockets before they are listening.
|
|
#
|
|
# It blocks until the milter sockets — OpenDKIM, the panel's journal-milter
|
|
# and, with the inbound relay on, its inbound journal milter — are present,
|
|
# then execs `postfix start-fg`. If they are not ready within the
|
|
# timeout it exits non-zero WITHOUT starting Postfix, so supervisord/Docker see
|
|
# an explicit startup failure instead of a relay running blind.
|
|
#
|
|
# This handles cold start only. Runtime milter failures after a successful start
|
|
# are governed by fail-open (milter_default_action).
|
|
set -eu
|
|
|
|
OPENDKIM_SOCK="${OPENDKIM_SOCKET:-/run/opendkim/opendkim.sock}"
|
|
JOURNAL_SOCK="${JOURNAL_MILTER_SOCKET:-/run/selfpost/journal.sock}"
|
|
TIMEOUT="${MILTER_WAIT_TIMEOUT:-30}"
|
|
INTERVAL=1
|
|
|
|
SOCKS="$OPENDKIM_SOCK $JOURNAL_SOCK"
|
|
if [ "${INBOUND_RELAY_ENABLE:-false}" = "true" ]; then
|
|
SOCKS="$SOCKS ${INBOUND_JOURNAL_MILTER_SOCKET:-/run/selfpost/inbound-journal.sock}"
|
|
fi
|
|
|
|
elapsed=0
|
|
for sock in $SOCKS; do
|
|
while [ ! -S "$sock" ]; do
|
|
if [ "$elapsed" -ge "$TIMEOUT" ]; then
|
|
echo "postfix-wrapper: timed out after ${TIMEOUT}s waiting for milter socket $sock" >&2
|
|
exit 1
|
|
fi
|
|
sleep "$INTERVAL"
|
|
elapsed=$((elapsed + INTERVAL))
|
|
done
|
|
echo "postfix-wrapper: milter socket ready: $sock"
|
|
done
|
|
|
|
echo "postfix-wrapper: milter sockets ready, starting postfix"
|
|
exec postfix start-fg
|