This message is generated by COREMAIL email system.<br>
I'm sorry to have to inform you that the message returned<br>
<br>
The message to user@abc.com is bounced because : DNS query error: abc.com<br>
你发送到user@fjtb.cn的邮件由于以下原因被退回 : DNS query error: abc.com<br>
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注:abc.com是已改过的域名<br>
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什么原因啊??老大??