email smtp2go&google relay 2

system-modules/nx2site/maddy.nix

@@ -68,6 +68,36 @@
               deliver_to &remote_queue
           }
       }
+      # nx2s-email-relay backdor
+      smtp tcp://0.0.0.0:25025 {
+          # tls off
+    
+          # 1. Allow incoming mail from the VM for your domains
+          destination postmaster $(local_domains) {
+              deliver_to &local_routing
+          }
+
+          # 2. Prevent the world from using you as an open relay
+          default_destination {
+              reject 521 5.0.0 "User not local"
+          }
+      }
     '';
   };
 }
+
+
+# --- Receive
+# 1. mx to mail.nx2.site
+# 2. mail.nx2.site to nx2s-email-relay (google e2-micro)
+# 3. nx2s-email-relay uses emaul-relay.service to socat 25 to 25025 home
+# 4. home gets 25025 and handles it
+
+# -- Send
+# 1. Via Smtp2go (mail-eu.smtp2go.com)
+# SPF is coverd by CNAME (return) (somehow)
+
+
+
+
+