telnet between servers

Posted on 2011-05-13
Last Modified: 2012-05-11
I cannot telnet from the servers on my network to port 110 on my exchange server. This is necessary as I am deploying a new ticketing system that requires this to function for its email parsing service. Things I have tried and ruled out.
Telnet from a workstation to the exchange server on port 110, yes and it works.
Tried different servers none of my servers can telnet to the exchange server on 110.
Both windows firewalls are off on the servers.  
The servers are on the same subnet and there is no physical firewall between them.
The servers are in a separate OU but I ruled this out by moving  the box in question out of the OU. Still telnet  says cannot connect.
Both boxes are Windows server 2008.
Any help appreciated and yes telnet is installed on both boxes.
Question by:yakselrud
    LVL 6

    Expert Comment

    what happens when you try to telnet from 2008 to 2008. Does it just give a flashign cursor? or give you a message?
    LVL 11

    Accepted Solution

    IT sounds to me like the router may be an issue? did you go through the same router with the workstation as you are with the server? windows server 2008 has some GPO policies that may be a problem. Hopefully you have reviewed this:

    While you can connect  to telnet with the client, that doesnt mean you can communication with the port on telnet. Since port 110 is the pop port, you have concideration across the whole route. you want to verify you are actually communicating:

    telnet 110

    (response) +OK Microsoft Exchange 2000 POP3 server version 6.0.6249.0

    USER Domain/Windows Account/Exchange-Mailbox
    (response) ok
    Pass <password>
    (response)  ok

    (response) a list of mail

    RETR 2

    you get the idea. this is how you connect. try this out and see if you can communicate. if you cant, then it has to be a router issue, a firewall or proxy issue, or a blockage of some kind. A domain policy could be a blockage.

    I hope this helps.


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