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
parent 6218540211
commit 0d98d92642
49 changed files with 2495 additions and 86 deletions
@@ -23,6 +23,7 @@ services:
    ports: !override
      - "465:465"
      - "587:587"
+      - "25:25"
    environment:
      # Caddy names certificate files after the hostname, not
      # fullchain.pem/privkey.pem like certbot — override the base file's