diff --git a/DAV_Containers/baikal/compose.yaml b/DAV_Containers/baikal/compose.yaml
index 4238669..89e9fd9 100644
--- a/DAV_Containers/baikal/compose.yaml
+++ b/DAV_Containers/baikal/compose.yaml
@@ -14,7 +14,7 @@ services:
         account        default
         host           ${host}
         port           587
-        from           calendar@${DOMAIN_NAME}
+        from           ${SERVICE_NAME}@${DOMAIN_NAME}
         user           ${user}
         password       ${password}
     volumes: