Outlook/Outlook Express Port 25 Blocked

Avast Free Antivirus / Premium Security
1

I have installed Avast Home edition on a few of my computers at home.

Unfortunately, on some of them, the system (all running winXP0 complains the Port 25 is block (this occurs on Boot-up) and when you try and send an email, it refuses to send the email. If I remove the Avast configuration, using the Mail Protection Wizard everything works as it should (except no virus protection).

As far as I know, I am not doing anything to block port 25. No firewall, no Internet

TCPView indicates the Port 25 is being watched by inetinfo.exe

Since I am not doing anything special with my system configuration, I don’t understand why the default installation wouldn’t work.

2

Inetinfo.exe is MS IIS (or PWS). You can disable SMTP server somewhere in its configuration if you don’t need it and it will unblock the port.