N) Mail Scanner

MailScanner is a tool that integrates your mail server (MTA = Postfix) with antivirus scanners and Spam Assassin.

Download generic 'Nix tarball from GitHub releases page

decompress and run install.sh

mkdir /opt/mailscanner
cd /opt/mailscanner
wget ...
tar xvf <downloaded file>
cd MailScanner-xxx
./install.sh