请教邮件退信问题
最近，发往一个客户的邮件老是退信，接收正常，已经加入到白名单，其他所有的客户收发也都正常的，退信提示：>: *Route slip host: xxx.net
>: *Route slip port: 25
>: Attempting SMTP connection to
>: Resolving MX records for (DNS Server: 省略)...
>: *P=020 S=000 D=xxx.net TTL=(146) MX=[] {}
>: Attempting SMTP connection to []
>: Waiting for socket connection...
>: *Winsock Error 10060 The connection timed out.
>: * added to connection failure cache for 5 minutes
>: This message is 63 minutes old; it has 0 minutes left in this queue
>: Remote queue lifetime exceeded; message placed in retry queue
请问这个是我这边邮件服务器的问题，还是对方邮件服务器的问题？
应该从哪里排查，谢谢！ 写的很清楚啊
Winsock Error 10060 The connection timed out.
[ 本帖最后由 ccoo 于 2010-9-10 14:06 编辑 ] 关闭防火墙，杀毒软件设置对MD排除例外，就是不对邮件系统做任何的监控和扫描。
再者就是网络线路不好引起的。
Winsock Error 10060 The connection timed out.
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