Exchange server as Internet mail server

[mtoto]

Hi..<br>
I have installed an Exchange server 5.5 as internet mail server. So I could not send or receive mail.<br>
Server send this undelivered message<br>
<br>
550: No such List<br>
550: Recipient unkown<br>
<br>
What is the problem?<br>
The MX record in my DNS is right.<br>
<br>
Thanks<br>

 

[Warcorp]

Hmm, there is more information on the bouce, for instance, what machines is replying to the bounce? It will say in the return message. If the bounce shows the Exchange server is replying then verify that the user you are sending to has an entry in it's address list that is the user@domain otherwise exchange will deny it. The domain has to be correct as well.<br>
<br>
If it does not list the Exchange server as the machine that is replying, then it is a relay. either you or your isp is relay that mail to you.<br>