sorry for my bad english…
I installed avast 4.7 Home Edition, but I do not know where is the configuration panel of the protection e-mail. ???
Monfa
Left click the ‘a’ blue icon, click ‘details’ button, choose Internet Mail (or Outlook) at left dependind of which is your email program, and then ‘customize’ button at right.
Feel free to ask for further help if you need.
obrigado.
era realmente bem escondido o painel de configuração! 
Monfa
You’re welcome. Although this is an English only forum, I can, of course, understand Portuguese 8)
Feel free to come back any time you need help or just to share knowledge.