Re: Can not connect to port 25

Are you connecting (TELNETing) to the server's IP address, or to a NetBIOS name, or to a DNS name? If either of the latter two, you may have a name resolution issue.

Also, is your SMTP server configured to respond only to certain IP addresses?

Yours,
Brad


_______________________________________________
Bradley J. Dinerman, MVP - Windows Server Networking
President, New England Information Security Group
http://www.neisg.org





Shawn wrote:
Windows 2003 Server SP1 with all updated installed. No firewall or antivirus installed. Locally no problem connecting to port 25. But can not connect from any host on the network. Telnet server 25, returns "...Could not open connection to host,..".

I have tried reinstalling SMTP and a lot more. You can ping the server and connect to other ports but not port 25.

Thanks for you help in adavance.
.

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