Is avast include code into gmail from browser?

When answered to someone, i got this… dont know what is that included in my email.

Virus-free. www.avast.com

Please (re)search before posting.
It is just a option of the recently added webmail scanning.

Sorry for not researching.

I think developers should notice about that kind of functions.

I don’t want others to know what kind of protection i am using. Isn’t secure, and it’s stupid, i know it’s made in marketing purposes, but please notice before including this.

See: https://forum.avast.com/index.php?topic=180216.0

After this new future i get from the e-mail tester a error
there is no alt"" as an alternative

sorry for my english i m dutch

https://forum.avast.com/index.php?board=31.0