发送邮件成功，但还是收到退信！
我们公司用的是CMAIL SERVER发送邮件都比较正常，但今天有收到退信，但我的服务器提示已经发送成功了。有的二十四小时才退回来：
退信内容如下：
----- Original Message -----
From: "Mail Delivery System" <MAILER-DAEMON@sngmx01.flextronics.com>
To: <sales-6@mail.chiang-yu.com>
Sent: Tuesday, December 09, 2008 8:55 PM
Subject: Undelivered Mail Returned to Sender
> This is the Symantec Mail Security program at host sngmx01.flextronics.com.
>
> I'm sorry to have to inform you that your message could not
> be delivered to one or more recipients. It's attached below.
>
> For further assistance, please send mail to <postmaster>
>
> If you do so, please include this problem report. You can
> delete your own text from the attached returned message.
>
> The Symantec Mail Security program
>
> <jiahong.liu@cn.vptech.com>: delivery temporarily suspended: connect to
> 10.201.208.16: Connection timed out
>
请各位大师帮忙解决一下！ 延迟退信，您的烦恼我可以帮您解决，和我联系！
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