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telnet port 25 closes

Posted on 2011-02-21
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Last Modified: 2012-06-21
I am not getting inbound email but I am able to send.  There are no error message in the log with regard to what is going on that I can find.

When I test via telnet 127.0.0.1 25 from the sever it looks as if it conencts and I get a - then the tenet ends and I am back to the c prompt.
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Question by:HalCHub
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14 Comments
 
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Expert Comment

by:Suliman Abu Kharroub
ID: 34947795
is the problem internally or externally ? if externally please test smtp on mxtoolbox.com
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Author Comment

by:HalCHub
ID: 34947804
internally
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Author Comment

by:HalCHub
ID: 34947808

 Server disconnected before banner was complete. using mxtoolbox

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Author Comment

by:HalCHub
ID: 34947845
when I telnet to port 110 I get a err protocol...
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Expert Comment

by:Suliman Abu Kharroub
ID: 34947857
which exchange version? did you checked the information store ? other exchange services ?
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Author Comment

by:HalCHub
ID: 34947866
2003 and yes.. 110 is working I cannot get 25 to work.. to I need to redo the metabase ?
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Expert Comment

by:Sommerblink
ID: 34948045
Have you tried disabling firewall, antivirus, malware scanners, etc on the server to make sure that the problem is strictly related to Exchange?
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Author Comment

by:HalCHub
ID: 34948077
do you how I can get a copy of smtpreinstall.exe for exchange 2003 ?
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Accepted Solution

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HalCHub earned 0 total points
ID: 34948542
its happening inside. I am going a reinstall of exchange 2003 sp1 and sp2.  After sp1 I check and smtp still does a quick disconnect.
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Expert Comment

by:Alan Hardisty
ID: 34949300
That sounds like classic Anti-Virus interference.  What have you got installed on your server?

Please run the following from a command prompt and upload c:\netstat.txt for review:

netstat -anbp tcp >c:\netstat.txt
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Expert Comment

by:MegaNuk3
ID: 34949304
Can you telnet the internal  IP address of the server on port 25 and not the Loopback (127.0.0.1)  address please.

Disable windows firewall or stop the service, then try the telnet again from the server itself and from another machine on your network.

Check the application event log for errors / warnings when you try the telnet. You may have IP address restrictions in place on the SMTP virtual server.
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Author Comment

by:HalCHub
ID: 34954159
no firewall.. I am working with Microsoft and fixing it...
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Expert Comment

by:Alan Hardisty
ID: 34954182
So rather than keep the question going and respond to our comments, you paid Microsoft!  Interesting!!
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Author Closing Comment

by:HalCHub
ID: 34990697
I did a reinstall and it fixed the problem
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