When you get the message that the email is delayed, you see it in the queue in your company's mail server waiting to be delivered. When you check the queue viewer, you should see an error message.
The error in the viewer should be the same as or in a similar format to this (though the actual error message may vary): . 451 4.4.0 Primary target IP address responded with "421 4.2.1 Unable to connect ..... From: King's Kid [mailto:kingskid1002...@yahoo.com] Sent: November-30-10 9:41 AM To: MS-Exchange Admin Issues Subject: Email delayed going to one specific domain Hi all, Yesterday our Exchange server stopped sending email to one specific domain (our consultant). The only change that was made to the server was I put in a rule regarding the Deleted items folder for our users which I have since deleted. All other emails are being sent correctly and our consultant is receiving emails from other clients. We recently upgraded to this version of Exchange and I'm still learning all the ends and outs. I googled the issue and didn't come up with anything. Any help would be appreciated. We running Exchange 2k7 on Small Business Server 2k8. Thanks BJ When the whole world is against you paranoia is just good sense - Johnny Fever --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist