Sounds like a DNS issue. I had the same problem. We had our DNS Server setup improperly (whoops), then once we did set it up properly, we've been ok since. Mike -----Original Message----- From: Marvin Cummings [mailto:marvc@xxxxxxxxxxxxx] Sent: Wednesday, December 24, 2003 9:42 AM To: [ExchangeList] Cc: '[ExchangeList]' Subject: [exchangelist] Mail delayed and not reaching some external destinations http://www.MSExchange.org/ I'm getting the following error returned on some of the email I send to external clients: Delivery to the following recipients has been delayed. I get this error a couple of days or hours after sending the email. A search of this error on Google returns a few links that seem to point to the connection being refused but I'm not sure. Can anyone confirm and provide some type of direction on how to troubleshoot this? Any responses are appreciated. ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------