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NitroxDM
Asked: 2011-01-15 16:04:39 +0800 CST

SMTP server (IIS) is running but can't test it with telnet

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I have a Windows 2003 web edition server that I can't seem to get the SMTP relay working.

BT4 shows port 25 open. When I try use telnet to test it on my desktop I get:

  Connecting To XXX.XXX.XXX.XXX...Could not open connection to the host, on port 25: Connect failed.

From the server I get: 

Microsoft Telnet> o 127.0.0.1 25
Connecting To 127.0.0.1...

Connection to host lost.

There isn't anything useful in the logs.

Any ideas?

windows-server-2003 smtp iis-6

2 Answers

  1. Windows Firewall doesn't block connections on the loopback. Check on the smtp interface on which IP it is listening first.

    Did you try to restart the windows smtp service ? Maybe it's in an invalid state.

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  2. Best Answer

    I have yet to connect using telnet.

    However I ruled out iis using smtpdiag.

    • 0