fixing mailimnglisten config

webserver/docker_mail/templates/mailcow-dockerized/data/conf/postfix/extra.cf

@@ -4,7 +4,8 @@ recipient_delimiter = +
 unknown_local_recipient_reject_code = 550
 owner_request_special = no
 
-local_recipient_maps =
+# use relay_recipient_maps instead of local_recipient_maps
+relay_recipient_maps =
   regexp:/opt/mailman/postfix_lmtp
 
 # Wert aus main.cf übernommen und ergänzt 

webserver/docker_mail/templates/mailcow-dockerized/docker-compose.override.yml

@@ -45,7 +45,7 @@ services:
 
     postfix-mailcow:
       volumes:
-        - "{{ basedir }}/data/mailman-core/var/data:/opt/mailman:ro,z"
+        - "{{ basedir }}/data/mailman-core/var/data:/opt/mailman:rw,z"
       networks:
         mail:
           aliases: