diff --git a/docker-compose/mail-relay/docker-compose.yml.j2 b/docker-compose/mail-relay/docker-compose.yml.j2
index e6c4bb08..a915e0fa 100644
--- a/docker-compose/mail-relay/docker-compose.yml.j2
+++ b/docker-compose/mail-relay/docker-compose.yml.j2
@@ -15,7 +15,9 @@ services:
       ALWAYS_ADD_MISSING_HEADERS: "no" # literal
       # LOG_SUBJECT: "yes" # literal
       INET_PROTOCOL: ipv4
-      #SMTP_GENERIC_MAP: "/.*/ info@mgrote.net" # deactivated; dont overwrite sender
+      SMTP_GENERIC_MAP: |
+        /^From:.*nobody@lldap/ REPLACE From: lldap@mgrote.net
+        # "/.*/ info@mgrote.net" # deactivated; dont overwrite sender
     networks:
       - mail-relay
     healthcheck: