[Web] Fix deleting sender_acl when mbox is deleted

data/web/inc/functions.mailbox.inc.php

@@ -4956,9 +4956,10 @@ function mailbox($_action, $_type, $_data = null, $_extra = null) {
             $stmt->execute(array(
               ':username' => $username
             ));
-            $stmt = $pdo->prepare("DELETE FROM `sender_acl` WHERE `logged_in_as` = :username");
+            $stmt = $pdo->prepare("DELETE FROM `sender_acl` WHERE `logged_in_as` = :logged_in_as OR `send_as` = :send_as");
             $stmt->execute(array(
-              ':username' => $username
+              ':logged_in_as' => $username,
+              ':send_as' => $username
             ));
             // fk, better safe than sorry
             $stmt = $pdo->prepare("DELETE FROM `user_acl` WHERE `username` = :username");