Hi all I run a exchange 2k server running on a win2k server in a 2k AD domain. Up and until about two weeks ago I was able to send e-mail to the sympatico.ca domain. Now I can not, but yet all other domains seem fine. My clients get the following message: The following recipient(s) could not be reached: on 9/16/2003 8:26 PM Could not deliver the message in the time limit specified. Please retry or contact your administrator. <mail.mydomain.com #4.4.7> I have tried several differnt options including checking to see if I was an open relay nope. Check dns status in dnsreports.com - ok Trying to contact the e-mail admin for sympatico is hopeless as they are like AT&T too big to reach :) I was just wondering if anyone else is experiencing the same problem or has any options? I am looking at setting up my own DNS but that is a little ways off, was just hoping for a quicker remedy. thanx in advancce for any help.