Merge branch 'spamfilter-delete-fix' into 'stable-3.1'

Fixed deleting spamfilter users when deleting mail domain

Signed-off-by: Kristián Feldsam <feldsam@gmail.com>

See merge request !377

interface/web/mail/mail_domain_del.php

@@ -78,7 +78,7 @@ class page_action extends tform_actions {
 		}
 
 		// Delete all spamfilters that belong to this domain
-		$records = $app->db->queryAllRecords("SELECT id FROM spamfilter_users WHERE email = ?", '%@' . $domain);
+		$records = $app->db->queryAllRecords("SELECT id FROM spamfilter_users WHERE email like ?", '%@' . $domain);
 		foreach($records as $rec) {
 			$app->db->datalogDelete('spamfilter_users', 'id', $rec['id']);
 		}