Hey brownie23 -

AOL scans in and outbound mail using Mcafee. Its pretty tight.
In addition any attachment you do download (if it got past mcafee) would be scanned by Avast when it hits your Harddrive.

for info - AOL uses smtp and IMAP - however their ports are not standard. If thats a concern and you insist on Avast scanning your email, use AOL’s “open mail access”, which uses the email your client of choice, and standard ports (again smtp and IMAP) ;D