Upstream sources — mailu

service	image	source repo	releases / changelog
app/admin/dovecot/postfix/rspamd/webmail	ghcr.io/mailu/*	https://github.com/Mailu/Mailu	https://github.com/Mailu/Mailu/releases
db	redis	https://github.com/redis/redis	https://github.com/redis/redis/releases
certdumper	ldez/traefik-certs-dumper	https://github.com/ldez/traefik-certs-dumper	https://github.com/ldez/traefik-certs-dumper/releases

Standing notes

All mailu services share the same image tag (e.g. 2024.06.52). Always bump all services together.
The mailu tag format is YYYY.MM.patch — 2024.06.x is the current stable series.
Redis is used purely as a cache/session store (no persistence required). Stay on the 8.0.x patch series; do not jump to 8.8.x or higher without operator approval.
traefik-certs-dumper is a sidecar that dumps Traefik TLS certs to disk. Minor bumps are safe.