Exchang2K不能往外发邮件但是可以收外面进来的邮件!什么问题啊？急，在线等

苏州小白

有退信回来内容如下：<br>
This is an automatically generated Delivery Status Notification.<br>
<br>
THIS IS A WARNING MESSAGE ONLY.<br>
<br>
YOU DO NOT NEED TO RESEND YOUR MESSAGE.<br>
<br>
Delivery to the following recipients has been delayed.<br>
<br>
请问这是什么问题啊？

钉子

首先要检查的是DNS IP是否能解析到外部域名。