it sounds like you are trying to block outbound ports. Your firewall should have 1024-5000 open for outbound communication by your servers. this is the default range setup by windows 2000 nd 2003 servers for outbound connections.
Block everything else inbound and outbound except for the ports you require for your server to service your customers. Kevin Bilbee > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of E. Shanbrom > (Ipswitch) > Sent: Thursday, January 29, 2004 8:33 AM > To: [EMAIL PROTECTED] > Subject: Re: [IMail Forum] Firewall configuration > > > you most likely need to have >1024 open outbound for everything to work as > expected. > > Eric S > ----- Original Message ----- > From: "Tom G" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Thursday, January 29, 2004 10:55 AM > Subject: [IMail Forum] Firewall configuration > > > > Hi: > > > > I'm working on closing some more ports to my imail servers, in efforts > > to make them more stable. > > > > I've checked the ipswitch KB, and I started by blocking everything > > except that list, but seems there is a port that has to be open, > > somewhere between 2800 and 2900, else Imail cannot deliver. I checked > > the archives here, but couldn't find anything. What am I missing? > > > > Thanks > > Tom > > > > > > Ports left open > > 25 - SMTP > > 53 - DNS > > 110 - POP3 > > 3389 - terminal services > > 8000 & 8001 (Both UDP) - IWebMsg, IWebCal > > 8383 - IWebMsg > > 8385 - Spell Checker > > 8484 - IWebCal > > > > Error in SMTP log looks like this: > > > > 01:29 10:42 SMTP-(04740008) Trying domainname.com (0) > > 01:29 10:43 SMTP-(04740008) MX connect fail "216.26.X.X" > > 01:29 10:43 SMTP-(04740008) requeuing > > M:\IMail\spool\Q29f50057004e6c65.SMD R0 T1 > > > > When I open that range, 2800 - 2900 it delivers fine. > > > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
