This is the Symantec Mail Security program at host mail01.hayco.com.hk.
I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below.
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The Symantec Mail Security program
<wellszhao@hayco.com.cn>: host 192.168.153.11[192.168.153.11] said: 511 sorry,
can't find a valid MX for sender domain (#5.1.1 - chkuser) (in reply to
MAIL FROM command)作者: hsz258 时间: 2007-5-24 18:58 标题: 备注 我已咨询过好几个搞邮件服务器的同事了,大家说是域名解析的问题,我公司用的是动态IP#,申请了静态IP# 还是存在此问题,后来又做了中转服务器,问题依旧,不知该如何处理,请大家帮帮我,先谢谢!!!(急)作者: lwz_08 时间: 2007-5-24 19:39
can't find a valid MX for sender domain