diff --git a/core/admin/mailu/models.py b/core/admin/mailu/models.py
index fab2103a..c8426fa2 100644
--- a/core/admin/mailu/models.py
+++ b/core/admin/mailu/models.py
@@ -8,7 +8,6 @@ from flask import current_app as app
 
 import flask_sqlalchemy
 import sqlalchemy
-import re
 import time
 import os
 import glob