Try initiating a direct connection from your Exchange server via telnet to port 25 on their smtp server and iniate a test message manually and see what happens. -----Original Message----- From: "Andrew English" <andrew@xxxxxxxxxxxxxxxxxxxxxx> Date: Fri, 14 Oct 2005 12:53:11 To:"[ExchangeList]" <exchangelist@xxxxxxxxxxxxx> Subject: [exchangelist] RE: Exchange Issues http://www.MSExchange.org/ Yeap. I am filtering Exchange on ISA, I can see the DNS being opened and then SMTP.. The odd SMTP gets denied. Andrew From: Zvonimir Bilic [mailto:zbilic@xxxxxxxxxxxx] Sent: Friday, October 14, 2005 11:11 AM To: [ExchangeList] Subject: [exchangelist] RE: Exchange Issues http://www.MSExchange.org/ Is Exchange published on ISA server? Did you check the logs on ISA server? From: Andrew English [mailto:andrew@xxxxxxxxxxxxxxxxxxxxxx] Sent: Friday, October 14, 2005 11:06 AM To: [ExchangeList] Subject: [exchangelist] Exchange Issues http://www.MSExchange.org/ I am having issues with a client of mine. They are running Exchange 2003 Server with ISA 2004 acting as their firewall, they also have the IMF as well, latest updates etc. The issue is when they send emails out to people who they have sent emails to in the past before the server was setup it bounces back saying the email has been delayed. Then a day or so later it says unable to send the email to that person please contact the administrator of their network. This doesn't tell me if it's the fault of Exchange or the fault of the ISP in some way. I have check the SMTP logs and don't see anything that could suggest their being a problem, when I connect via OWA and send an email to my various accounts I get an email and nothing gets delayed, so I am at a loss as to what it could be if it's related to Exchange!? Andrew ------------------------------------------------------ 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: zbilic@xxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@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: andrew@xxxxxxxxxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@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: rkasslack@xxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx