diff --git a/selfprivacy_api/services/mailserver/__init__.py b/selfprivacy_api/services/mailserver/__init__.py
index 9c61b7a..eb69ae9 100644
--- a/selfprivacy_api/services/mailserver/__init__.py
+++ b/selfprivacy_api/services/mailserver/__init__.py
@@ -6,7 +6,6 @@ import typing
 
 from selfprivacy_api.jobs import Job, JobStatus, Jobs
 from selfprivacy_api.services.generic_service_mover import FolderMoveNames, move_service
-from selfprivacy_api.services.generic_size_counter import get_storage_usage
 from selfprivacy_api.services.generic_status_getter import (
     get_service_status,
     get_service_status_from_several_units,
@@ -96,10 +95,6 @@ class MailServer(Service):
     def get_logs():
         return ""
 
-    @staticmethod
-    def get_storage_usage() -> int:
-        return get_storage_usage("/var/vmail")
-
     @staticmethod
     def get_folders() -> typing.List[str]:
         return ["/var/vmail", "/var/sieve"]