And regarding your mail server… set in your mail client like everything should be set under POP and SMTP settings. After that go and start mail protection wizard (it’s in your start menu under avast! folder). Click NEXT, and then choose AUTOMATICALLY PROTECT ALL MY ACCOUNTS and put checkmark under AUTOMATICALLY PROTECT ALL MY ACCOUNTS THAT I CREATE IN THE FUTURE. Click NEXT and then just enter your DEFAULT pop and SMTP servers. Click NEXT and you’re all set…
That will solve the problem regarding accessing your mail server.
If you wanna make your computer little bit faster, just disable some of avast! providers that you don’t use… like INSTANT MESSAGING, P2P shield, Outlook/Exchange… of course if you don’t use them.
Believe me, avast! is very, very light on your system resources comparing to some other and very expensive antivirus tools.
Regards !