我的邮件是不是被拒收了???怎么知道是否被对方拒收了?
This is the Postfix program at host smtp.263.net.
I'm sorry to have to inform you that the message returned
below could not be delivered to one or more destinations.
For further assistance, please contact <postmaster@263.net>
If you do so, please include this problem report. You can
delete your own text from the message returned below.
The Postfix program
您好!我是263.net电子邮局的邮件投递员。
我很抱歉地通知您,您的邮件在投递过程中出现了错误而被退回。
此致
263天下邮
<example@sohu.com>: host sohumx.sohu.com[61.135.132.100] said: 554
<unknown[202.96.44.19]>: Client host rejected: Access denied
(example是代替的名字)
(263发给sohu的)
怎么知道是否被对方拒收了?