I'm running exchange 2003 on Server 2003. From my workstation's command prompt, if I enter "telnet (myserver.domain.local) 25" the screen hangs for a second and then reverts back to the original prompt screen. I can't even do "telnet localhost 25" from the exchange server itself.
Now keep in mind, everyone's e-mail is working (we use Outlook 2003-2010) and there are no issues with this. However, I need a 3rd-party program to connect to my exchange server and send e-mail for paperless invoicing.
When setting up that program, the connection never can be made and the error is simply that the server could not connect. I suspect it can't connect for the same reason I can't telnet to port 25! This program is also trying to send SMTP over 25.
Any help is appreciated!