Synced apps from source repository via GitHub Actions

apps/mailserver/14.0.0/docker-compose.yml → apps/mailserver/15.0.0/docker-compose.yml

@@ -26,7 +26,7 @@ services:
       test: ss --listening --tcp | grep -P 'LISTEN.+:smtp' || exit 1
       timeout: 3s
     hostname: ${HOSTNAME_FQDN}
-    image: mailserver/docker-mailserver:14.0.0
+    image: mailserver/docker-mailserver:15.0.0
     labels:
       createdBy: Apps
     networks: