On the site https://www.atomicorp.com/products.html is no hint for a Email protection
Realtime malware/virus/trojan protection from web, file and local based attacks.

On the Features site https://www.atomicorp.com/wiki/index.php/ASL_Features is mail included.

Realtime malware/virus/trojan protection from web, mail, file and local based attacks.

Is there a Mailbox Protection from asl?

Thank you in advance

ASL includes antivirus protection you can use for email, but it does not setup or integrate with your mail server. We do however offer free software via our atomic channel that will do this for qmail and postfix. I'm on my way to a meeting so I can't search the forums right now, but if you search around you'll find lots of threads in the anti-spam forum about setting it up.

Theres also a free unsupported web plugin for plesk that can provide per domain settings for this too.