Thanks for the reply. The PC uses a different firewall rule than the 2 servers, but I moved one of the exch servers to the rule the PC was using (which is an allow-all outbound) and the problem still existed when i tested that last night.
The exchange 2003 server CAN telnet into the 2007 server without problem and vice versa, but BOTH have problems with "connection to host lost" when going out to the internet. I have tried telnetting into multiple (5-10) mail smtp servers, and they all drop. I tried bouncing my firewall (ISA 2006). Appreciate the ideas... keep em coming :) J Original Message: ----------------- From: Paul Hutchings [email protected] Date: Mon, 04 Oct 2010 12:02:37 -0400 To: [email protected] Subject: RE: outbound smtp broke (connection to host lost) If you were on a DNS blacklist I would expect you to get a clean 5xx reject, not a disconnect. I'd be looking at your firewall. Do your Exchange servers go out through the same rule as your PC does? Do both servers talk happily enough to each other or is it only when it's to external servers? Have you tried telnetting to multiple mail servers? Are you receiving mail just not sending? ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin -------------------------------------------------------------------- mail2web.com – Enhanced email for the mobile individual based on Microsoft® Exchange - http://link.mail2web.com/Personal/EnhancedEmail ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
