DavidR
3
avast can protect multiple pop3 email accounts, depending on the email program used this can be setup either using the Mail Protection Wizard or Manually.
What email program are you using?
Did you run the Mail Protection Wizard?
Was you email program closed when you ran it?
visit the User’s FAQ thread, (Mail Protection Wizard) it will give you a lot of useful advice.
Read the avast help file, Setting up the mail Protection.