Im getting an error on a student at our school. You cant send him mail and you get this error 'SMTPSEND.DNS.MxLoopback; DNS records for this domain are configured in a loop ##". is set up just like everybody else and there is no difference when checking his ADIS settings against avery body else. Any suggestions?

What version of Exchange server do you have? Does the user have any forwarded setup? How are your SMTP connectors setup?DJ Grijalva | MCITP: EMA 2007/2010 | www.persistentcerebro.com

Give us more information about the setup, rules, mx records etcJonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog

Hi, Does the problem happen on other recipients who is in the same domain (using same email address suffix @domain.com)? If the problem happens in all recipients in that domain and you are using Exchange 2007/2010, please try to re-subscript HUB and Edge servers: 1. Deleted the Edge Subscription from both HUB and Edge servers 2. Restarted the ADAM service on the Edge server 3. Created a new Edge Subscription and imported it on the HUB server Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Thanks Gen Lin-MSFT

I went ahead and blew the account away and rebuilt it. THat seems to have done the trick.