Blocked port 25 on Windows 7 64 bit

Posted by Michal Gow on Super User See other posts from Super User or by Michal Gow
Published on 2012-04-02T21:25:21Z Indexed on 2012/04/03 11:33 UTC
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windows-7

Strange problem.

I have 2 computers connected to Wifi router.

One with Windows Vista & second with 2 operating systems: SUSe Linux and Windows 7 64bit on it.

Computer with Vista can connect to SMTP server of my email provider (and any other) using port 25, and can connect to a mail server using telnet mail.server.com 25 if this port is open.

Computer with dual operating system can (using Linux) do the same.

The same computer, with the same hardware (Wifi card etc.), and using the same WiFi router, cannot however use Port 25 and cannot Telnet into any smtp server.

So the problem is in Windows 7.

I did uninstall all antivirus software and disabled the firewall. The problem is still here.

Is there way how find out which software is blocking this port?

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