Hi all,
So I've been having trouble with my email sending out spam, basically the whole reason I even got Avast, but I can't quite figure out how to enable the Mail Shield? The picture is what it looks like on my screen. It says no files have been scanned and I can't find settings anywhere. Could somebody please help me? 
PS: I have the Avast! Free Antivirus. If that helps with anything.
1. Mail Shield does not filter outgoing emails. (Eddy, there's no checkmark for that on Avast! for Mac, there is no such function in the Mac version)
2. Why do you say your email is sending out spam? Because people are receiving spam messages with your email address on them? You should know that it's very easy to spoof the 'from:' field of an email, so it doesn't actually mean they are coming from your computer.
3. If your computer is actually being turned into a spam bot, that means there's a piece of software running that is doing that job, Mail shield does not deal with that, however, a full system scan might detect the malicious software.