There was a SMTP communication problem with the recipient's email server.
Please contact your system administrator.
<computername.domainname.local #5.5.0 smtp;554 Service unavailable; Client host my ip address] blocked using zen.spamhaus.org; http://www.spamhaus.org/query/bl?ip=my ip address>
The message cannot be delivered due to a configuration error on the server. Please contact your Administrator.
<computename.domainname.local #5.3.0 smtp;553 5.3.0 flpi191 - n1P0Dlhi025245, DNSBL:ATTRBL 521< my ip address>_is_blocked.__For_information_see_http://att.net/blocks>
3.
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<computername.domainname.local #5.5.0 smtp;550 Rejected due to the sending MTA's poor reputation. Please refer http://mail.sina.com.cn/help2/rwmail.html>
作者: liu 时间: 2009-2-27 11:02
1.确认A记录、MX与反向解析有没有同步变更。