v2 调整

@@ -135,17 +135,39 @@ class Home extends Base {
 
                 // 通过时间来搜索uid
                 $uids = $mail->client->search(['SINCE'=>date('d-M-Y',$udate)],true);
+                if ($uids){
+                    // 已有的uid
+                    $useuids = db()->all(
+                        sprintf(
+                            "select `uid` from `%s` where `email_id` = %d and `folder_id` = %d and `uid` in (%s)",
+                            listsSql::$table,
+                            $email['id'],
+                            $folder['id'],
+                            implode(',',$uids)
+                        )
+                    );
+                    $useuids = $useuids ? array_column($useuids,'uid') : [];
+                    if($useuids){
+                        // 删除多余的
+                        foreach ($uids as $k=>$uid){
+                            if(in_array($uid,$useuids)){
+                                unset($uids[$k]);
+                            }
+                        }
+                    }
+
+                    // 进行同步
+                    $mail->syncUidEmail(
+                        $uids,
+                        $email['id'],
+                        $folder['origin_folder'],
+                        $folder['id'],
+                        [],
+                        [],
+                        db()
+                    );
+                }
 
-                // 进行同步
-                $mail->syncUidEmail(
-                    $uids,
-                    $email['id'],
-                    $folder['origin_folder'],
-                    $folder['id'],
-                    [],
-                    [],
-                    db()
-                );
             }
         }