Thanks, Michael. I think that may be the answer! I'll let you know. -----Original Message----- From: Michael B. Smith [mailto:michael@xxxxxxxxxx] Sent: Wednesday, January 11, 2006 3:02 PM To: [ExchangeList] Subject: [exchangelist] RE: AOL, Yahoo and other servers do not respond to connection attempt http://www.MSExchange.org/ http://support.microsoft.com/kb/832223/en-us -----Original Message----- From: Jan Mt. Pleasant [mailto:MtPleasantJ@xxxxxxxxxxxxxx] Sent: Wednesday, January 11, 2006 1:08 PM To: [ExchangeList] Subject: [exchangelist] RE: AOL, Yahoo and other servers do not respond to connection attempt http://www.MSExchange.org/ Chris, Using nslookup, I am unable to identify the MX records for yahoo or aol, though I can get them for other domains. The response is "DNS request timed out." What's going on? -----Original Message----- From: Chris Wall [mailto:Chris.Wall@xxxxxxxxxxxxxxxxxxx] Sent: Wednesday, January 11, 2006 12:45 PM To: [ExchangeList] Subject: [exchangelist] RE: AOL, Yahoo and other servers do not respond to connection attempt http://www.MSExchange.org/ From your server, can you perform an NSLookup in dos and identify the organizations (yahoo, aol, etc) MX records? Once you do this, try to initiate an SMTP session in Dos (still on your mail server) and manually send an e-mail through dos. If you can do that fine, then your firewall definitely is not the issue. Are you on any Black Lists? DNSStuff.Com is a great utility for testing your domain, finding blacklist info and so forth. Let us know the results of the SMTP mail delivery through dos on the mail server. Chris -----Original Message----- From: Jan Mt Pleasant [mailto:mtpleasantj@xxxxxxxxxxxxxx] Sent: Wednesday, January 11, 2006 11:59 AM To: [ExchangeList] Subject: [exchangelist] AOL, Yahoo and other servers do not respond to connection attempt http://www.MSExchange.org/ Since upgrading our mail server to Win2k3 and Exchange 2k3 (enterprise) over the holidays, we have been unable to send mail to certain domains, including AOL, Yahoo and others. The messages just sit in the queues and then time out. We're behind a pix firewall. I've checked the message boards and made sure that our IP has entered PTR and A records for us, but that doesn't seem to have helped. Any thoughts? Thanks. Jan Mt. Pleasant ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: Chris.Wall@xxxxxxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to info@xxxxxxxxxxxxxx ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: mtpleasantj@xxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to info@xxxxxxxxxxxxxx ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: michael@xxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to info@xxxxxxxxxxxxxx ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: mtpleasantj@xxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to info@xxxxxxxxxxxxxx