There are some information in help files about configuration of Internet Mail (POP3 and SMTP) both for manual and automatic configuration.

avast! supports multiplies mail acounts in many e-mail clients (Outlook, Outlook Express, Incredimail, etc.).

You can run Mail Protection Wizard too.
After that, could you tell us if you get some trouble. Thanks. :wink:

Wellcome to the foruns… ;D