Quantcast
Channel: Exchange Server 2010 forum
Viewing all articles
Browse latest Browse all 8820

554 Recipient address rejected: User unknown

$
0
0

Hi all,

I am having an issue with a secondary accepted domain name. The DNS MX is set correctly and I have tested outbound email which is fine. I can telnet to the server through mail.secondname.com so port 25 is passing fine, but I get the following error when I try send an email to any addresses.

554 5.1.2 Recipient address rejected: User unknown

The accepted domain has been created and of course I have checked users have the correct aliases as well. I am at a complete lose end here. Any suggestions would be much appreciated.

Callum


Viewing all articles
Browse latest Browse all 8820

Trending Articles



<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>