Exchange Server Forums

Connectivity Issuesd

Users viewing this topic: none

Logged in as: Guest

Printable Version

All Forums >> [Microsoft Exchange 2007] >> General >> Connectivity Issuesd

Page: [1]

Message

<< Older Topic Newer Topic >>

Limited time MSExchange.org offer! -- 1.Sep.2008 1:00:00 PM

TechGenix and SolarWinds have partnered to provide free copies of SolarWinds Exchange Monitor to all visitors who join the MSExchange.org Forums. SolarWinds Exchange Monitor is a handy desktop dashboard that continuously monitors Microsoft Exchange to deliver real-time insight into Exchange services, mail queue sizes, and host server health. Learn more about Exchange Monitor and the free offer!

Connectivity Issuesd - 4.Apr.2006 9:20:48 AM

armanddp

Posts: 1
Joined: 4.Apr.2006
Status: offline

We've recently installed Exchange 12 for a quick evaluation and subsequently uninstalled it from our server. However after the uninstall our server is unable to establish smtp connections out to over smtp servers.
There is a different smtp server running on the server now and all incoming connections works perfectly. There is a Windows Firewall running on the machine but we've tried the same excercise with the firewall disabled to no avail. It's as if there's some implicit port filtering happening which blocks connections out on port 25. There's no other firewall on the network the server is on, it's Server 2003 machine with Service Pack 1 installed.

Prior to the Exchange 12 installation smtp was working fine :S. When trying a simple telnet from the server out and watching the resulting session in Ethereal we can see the SYN going out but no ACK back from the remote servers. Doing it from the remote server to our server results in a successfull session. There's also no TCP/IP filtering setup on the adapters. And literally all other ports work.

I hope there's some registry setting or some configuration left over from the Exchange install that disabled this but we're seriously stumped and I hope someone can shed some light on this for us.

_____________________________

MVP C#