bug

@@ -462,12 +462,21 @@ class Mail {
 
 
             // 更新描述
+            try {
                 $db->update(listsSql::$table,[
-                'description'  =>  $description,
+                    'description'  =>  @base64_encode($description) ? $description : '',
                     'is_file'   =>  MailFun::isBodyFile($body)
                 ],dbWhere([
                     'id'    =>  $id
                 ]));
+            }catch (\Throwable $e){
+                $db->update(listsSql::$table,[
+                    'is_file'   =>  MailFun::isBodyFile($body)
+                ],dbWhere([
+                    'id'    =>  $id
+                ]));
+            }
+
         }
 
         return true;