In the ‘raw view’ of any mail message scanned by Avast Mail Shield should be X-headers. Below are headers from a message that I’d sent and then received back a couple of weeks ago.
X-Antivirus: avast! (VPS 131213-0, 12/13/2013), Outbound message
X-Antivirus-Status: Clean
X-Antivirus: avast! (VPS 131213-0, 12/13/2013), Inbound message
X-Antivirus-Status: Clean
Thx, the issue is thru Exchange Server w/SSL. http://forum.avast.com/index.php?topic=140354.0
Also, in the items/options to not check during Custom Install…is the “Browser Protection” option the Online Security item/add-in that is first thing everyone is told to disable ?
I don’t know what’s advised in general about what to use or not. I personally only use the 3 shields and the software updater.
You really need to test it in your own environment to know for sure how it’s going to work for you. The installer is easy enough to run (pay attention to all the checkboxes).
Free version : http://files.avast.com/iavs9x/avast_free_antivirus_setup.exe
Pro version : http://files.avast.com/iavs9x/avast_pro_antivirus_setup.exe
Internet Security version : http://files.avast.com/iavs9x/avast_internet_security_setup.exe
Premier version : http://files.avast.com/iavs9x/avast_premier_antivirus_setup.exe
Plus Avast provides a tool that will completely remove it if you choose not to keep it:
AvastClear : http://files.avast.com/iavs9x/avastclear.exe
-Noel
It seems the “avast online security” plug-in affects some while not affecting others.
As far as what should or should not be selected by any particular user is up to them
and their needs. 