diff --git a/DMS/docker-compose.yml b/DMS/docker-compose.yml
index 122a35a..da28cbb 100644
--- a/DMS/docker-compose.yml
+++ b/DMS/docker-compose.yml
@@ -139,7 +139,7 @@ services:
       - ROUNDCUBEMAIL_DEFAULT_HOST=ssl://node1.email-srvr.com
       - ROUNDCUBEMAIL_DEFAULT_PORT=993
       - ROUNDCUBEMAIL_SMTP_SERVER=tls://node1.email-srvr.com
-      - ROUNDCUBEMAIL_SMTP_PORT=587
+      - ROUNDCUBEMAIL_SMTP_PORT=465
       - ROUNDCUBEMAIL_PLUGINS=password,email_config
     ports:
       - "8888:80"