always restart mail db

webserver/docker_mail/templates/docker-compose.yml

@@ -144,6 +144,7 @@ services:
   db:
     image: mariadb:10.5
     command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci
+    restart: always
     volumes:
       - "{{ basedir }}/db:/var/lib/mysql"
       - "{{ basedir }}/db-init:/docker-entrypoint-initdb.d:ro"