Add Maddy relay on mini-pc

cloud-pc/nextcloud/docker-compose.yml

@@ -31,8 +31,6 @@ services:
       NEXTCLOUD_OVERWRITEPROTOCOL: https
       NEXTCLOUD_OVERWRITEHOST: ${NC_DOMAIN}
       NEXTCLOUD_OVERWRITECLIURL: https://${NC_DOMAIN}
-      NEXTCLOUD_ADMIN_USER: ${NC_ADMIN_USER}
-      NEXTCLOUD_ADMIN_PASSWORD: ${NC_ADMIN_PASSWORD}
       REDIS_HOST: redis
       TRUSTED_PROXIES: ${TRUSTED_PROXIES}
 

mini-pc/maddy/.env.example

@@ -0,0 +1,5 @@
+MADDY_HOSTNAME=mail.ada-dev.ru
+MADDY_DOMAIN=ada-dev.ru
+RELAY_SMTP_TARGET=tcp://smtp.example.com:587
+RELAY_SMTP_USERNAME=apikey
+RELAY_SMTP_PASSWORD=changeme

mini-pc/maddy/docker-compose.yml

@@ -0,0 +1,18 @@
+services:
+  maddy:
+    image: foxcpp/maddy:0.8
+    container_name: maddy
+    hostname: maddy
+    restart: unless-stopped
+    env_file:
+      - .env
+    volumes:
+      - /opt/data/maddy:/data
+      - ./maddy.conf:/data/maddy.conf:ro
+    networks:
+      - mail
+
+networks:
+  mail:
+    name: mail
+    driver: bridge

mini-pc/maddy/maddy.conf

@@ -0,0 +1,24 @@
+hostname {env:MADDY_HOSTNAME}
+state_dir /data
+runtime_dir /run/maddy
+
+smtp tcp://0.0.0.0:2525 {
+    hostname {env:MADDY_HOSTNAME}
+    dmarc no
+    limits {
+        all rate 30 1m
+    }
+
+    source {env:MADDY_DOMAIN} {
+        default_destination {
+            deliver_to smtp {env:RELAY_SMTP_TARGET} {
+                auth plain {env:RELAY_SMTP_USERNAME} {env:RELAY_SMTP_PASSWORD}
+                starttls yes
+            }
+        }
+    }
+
+    default_source {
+        reject 550 5.7.1 "Sender domain is not allowed"
+    }
+}