邮件老退
我现在公司有两个邮件系统A在服务器1上 , B 在服务器2上A是用的winmail
B是exchange很正常
现在添加的A邮件系统给B发邮件总是退信，但是发其他的邮箱还是正常，而且B是可以发给A的
退信如下
Hi. This is the smtp delivery program.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.
I'm not going to try again; the message live in queue too long time.
remote server said: create server socket failed (mail : 25)
是什么原因？
谢谢帮助 防火墙上A到B的25端口开了么？ 没有 这条记录应该怎么写啊
防火墙我不太了解
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