What are some alternatives?
When comparing MailScanner and Scrollout F1, you can also consider the following products
SpamAssassin - Use this program to "Unspam" your mailbox(es).
Mailwasher - Over 8 million people use MailWasher as their spam filter
Proxmox Mail Gateway - Protect mail server against spam, viruses and malware with Proxmox Mail Gateway security for businesses, government, education and non-profit organizations.
Altospam - Antispam and antivirus software on Cloud
BitNinja.io - BitNinja is the first integrated server defense network, can be installed within 1 minute on any...
amavisd-new - amavisd-new is a high-performance interface between mailer (MTA) and content checkers: virus...