var labelObj = GmailApp.getUserLabelByName('autoReply'); //这里面的autoReply就是我们上面设置的归档名字。
var gmailThreads;
var messages;
var sender;
var num = 2; //设置连续自动回复邮件的次数(为防止两人都是自动回复,当发送次数达到 6 时将不自动回复)。
var hours = 12; //过了多少小时后又可以自动回复。
//下面就是获取我们上面指定归档里面的未读邮件,然后读取,回复,删除
for (var gg = 0; gg < labelObj.getUnreadCount(); gg++) {
gmailThreads = labelObj.getThreads()[gg];
messages = gmailThreads.getMessages();
for (var ii = 0; ii < messages.length; ii++) {
if (messages[ii].isUnread()) {
sender = messages[ii].getFrom();
MailApp.sendEmail(sender, 'Auto Reply', "The letter has been already received We will contact you as soon as possible. ———From the bot reply. ");//回复邮件