Better fix

modoboa_installer/scripts/dovecot.py

@@ -110,11 +110,6 @@ class Dovecot(base.Installer):
             self.config.get("dovecot", "mailboxes_owner"),
             'dovecot'
         )
-        # Add modoboa to dovecot group for doveadm commands.
-        system.add_user_to_group(
-            self.config.get("modoboa", "user"),
-            'dovecot'
-        )
 
     def restart_daemon(self):
         """Restart daemon process.

modoboa_installer/scripts/files/dovecot/conf.d/10-master.conf.tpl

@@ -89,6 +89,21 @@ service postlogin {
   }
 }
 
+service stats {
+  # To allow modoboa to access availible cipher list.
+  unix_listener stats-reader {
+    user = vmail
+    group = vmail
+    mode = 0660
+  }
+
+  unix_listener stats-writer {
+    user = vmail
+    group = vmail
+    mode = 0660
+  }
+}
+
 service auth {
   # auth_socket_path points to this userdb socket by default. It's typically
   # used by dovecot-lda, doveadm, possibly imap process, etc. Users that have