Avast Free / Gmail Web version

All the messages about Avast and Gmail have me a little confused. I don’t use mail client software but rather just send and receive via the Gmail website and my phone. I notice in Avast that no emails have been scanned in the past couple of days when I downloaded the evaluation copy. Do I have to change something to get it to scan my web-based email inbound and outbound?

Thanks

No antivirus scan webmail, the mailshield only scan if you use a mail program to download the mail, like outlook / Outlook express…
however if you download an attachment to your computer from the web mail it will of course scan the file downloaded

OBS: and Gmail is using twin virus scanners on the mail server, McAfee and Authentium