exchange 2003平时基本都没问题,就是偶尔会有一两封邮件会受到类似的推信,错误信息如下:
You do not have permission to send to this recipient.
For assistance, contact your system administrator.
<mail.xxx.com #5.7.1 smtp;554 5.7.1 <aaa@bbb.com>: Relay access denied> 如果用户过一会儿再重发的话,又可以发了,这是为啥亚? |