标题: 退信内容 [打印本页] 作者: lipton100 时间: 2008-2-2 21:07 标题: 退信内容 Subject: Mail delivery failed: returning message to sender
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
xxx.xx@xxx.com
It appears that the DNS operator for xxx.com
has installed an invalid MX record with an IP address
instead of a domain name on the right hand side.