📩 update port forwarding for smtp, imap and pop

Author: jaka-k

Caddyfile

@@ -18,28 +18,25 @@ chroma.mrag.krajnc.cc {
 
 # MAIL ->
 
-# HTTP-01
+# HTTP site just for ACME
 mail.krajnc.cc {
-  # This tells Caddy to obtain/renew the cert for mail.krajnc.cc
   tls admin@krajnc.cc
-
-  # We don’t need to actually serve a website here, so just 404 everything
   respond "Not Found" 404
 }
 
-# IMAPS
+# IMAPS (port 993)
 mail.krajnc.cc:993 {
   tls admin@krajnc.cc
   reverse_proxy stalwart:993
 }
 
-# POP3S
+# POP3S (port 995)
 mail.krajnc.cc:995 {
   tls admin@krajnc.cc
   reverse_proxy stalwart:995
 }
 
-# SMTP Submission (STARTTLS)
+# SMTP Submission w/ STARTTLS
 mail.krajnc.cc:587 {
   tls admin@krajnc.cc
   reverse_proxy stalwart:587

docker-compose.prod.yml

@@ -107,11 +107,12 @@ services:
     image: stalwartlabs/stalwart:latest
     container_name: stalwart
     restart: unless-stopped
+    expose:
+      - "25"      # SMTP
+      - "587"    # Submission (SMTP/TLS)
+      - "993"    # IMAPS
+      - "995"    # POP3S
     ports:
-      - "25:25"      # SMTP
-      - "587:587"    # Submission (SMTP/TLS)
-      - "993:993"    # IMAPS
-      - "995:995"    # POP3S
       - "8060:8080"  # Admin GUI
     volumes:
       - stalwart_data:/data