Not my problem. You wouldn't need an antivirus with a properly locked browser with UBlock Origin and OFC no damn HTML email. GPO's blocking anything not being under an executable whitelist.

If any, your email client should open any attachment under a sandbox, such as Sandboxie, under a libre license:

https://github.com/sandboxie-plus/Sandboxie

Of course no Office macros would be allowed, ever.