diff --git a/kallithea/model/notification.py b/kallithea/model/notification.py
--- a/kallithea/model/notification.py
+++ b/kallithea/model/notification.py
@@ -299,13 +299,13 @@ class EmailNotificationModel(BaseModel):
             self.TYPE_PULL_REQUEST_COMMENT: 'pull_request_comment',
         }
         self._subj_map = {
-            self.TYPE_CHANGESET_COMMENT: _('[Comment from %(comment_username)s] %(repo_name)s changeset %(short_id)s on %(branch)s'),
+            self.TYPE_CHANGESET_COMMENT: _('[Comment] %(repo_name)s changeset %(short_id)s on %(branch)s'),
             self.TYPE_MESSAGE: 'Test Message',
             # self.TYPE_PASSWORD_RESET
             self.TYPE_REGISTRATION: _('New user %(new_username)s registered'),
             # self.TYPE_DEFAULT
-            self.TYPE_PULL_REQUEST: _('[Added by %(pr_username)s] %(repo_name)s pull request %(pr_nice_id)s from %(ref)s'),
-            self.TYPE_PULL_REQUEST_COMMENT: _('[Comment from %(comment_username)s] %(repo_name)s pull request %(pr_nice_id)s from %(ref)s'),
+            self.TYPE_PULL_REQUEST: _('[Added] %(repo_name)s pull request %(pr_nice_id)s from %(ref)s'),
+            self.TYPE_PULL_REQUEST_COMMENT: _('[Comment] %(repo_name)s pull request %(pr_nice_id)s from %(ref)s'),
         }
 
     def get_email_description(self, type_, **kwargs):