After installing Comodo Firewall ( latest version [ at ] 22/12/08 ) it is not possible anymore to send or receive mail via POP3, any sollutions out there?

After ininstalling Comodo it was working fine. After that I installed Webroot Desktop Firewall and Windows Live Mail was working fine as before.
Any way known to stay with the fine products of COMODO?
As you mentioned the Webroot Desktop Firewall in your post, do you by any chance also use Webroot Spy Sweeper with the email shield active?
If so, try turning off the email shield in Spy Sweeper and see if that resolves the issue with the Comodo firewall.