feat: add optional mailpit configuration (#1269)

devcontainer-example/docker-compose.yml

@@ -20,6 +20,21 @@ services:
   #   volumes:
   #     - postgresql-data:/var/lib/postgresql/data
 
+  # Enable Mailpit if you need to test outgoing mail services
+  # See https://mailpit.axllent.org/
+  #  mailpit:
+  #    image: axllent/mailpit
+  #    volumes:
+  #      - mailpit-data:/data
+  #    ports:
+  #      - 8025:8025
+  #      - 1025:1025
+  #    environment:
+  #      MP_MAX_MESSAGES: 5000
+  #      MP_DATA_FILE: /data/mailpit.db
+  #      MP_SMTP_AUTH_ACCEPT_ANY: 1
+  #      MP_SMTP_AUTH_ALLOW_INSECURE: 1
+
   redis-cache:
     image: docker.io/redis:alpine
 
@@ -69,3 +84,4 @@ services:
 volumes:
   mariadb-data:
   #postgresql-data:
+  #mailpit-data: