diff --git a/docker-compose.yml b/docker-compose.yml
index e6846e9..48438ec 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -32,7 +32,7 @@ services:
       # email server (if configured)
       NOTIFICATIONS_SMTP_HOST: "${SMTP_HOST}"
       NOTIFICATIONS_SMTP_PORT: "${SMTP_PORT}"
-      NOTIFICATIONS_SMTP_SENDER: "${SMTP_SENDER:-OpenCloud notifications <notifications@${OC_DOMAIN:-cloud.opencloud.test}>}"
+      NOTIFICATIONS_SMTP_SENDER: "${SMTP_SENDER:-OpenCloud Notifications <notifications@cloud.opencloud.test>}"
       NOTIFICATIONS_SMTP_USERNAME: "${SMTP_USERNAME}"
       NOTIFICATIONS_SMTP_PASSWORD: "${SMTP_PASSWORD}"
       NOTIFICATIONS_SMTP_INSECURE: "${SMTP_INSECURE}"