Amavis

Amavis gives you an interface between mail servers (MTAs such as Postfix or DoveCot) and mail filters (ClamAV, SpamAssassin). In many cases it is more efficient than running separate daemons like spamd.

Install & Setup

Build amavisd-new from the AUR and install it with pacman. You'd be wise to also install optdepends such as p7zip and unrar so your filters can actually see inside compressed files.

sudo pacman -U amavisd-new-*-any.pkg.tar.xz
sudo pacman -Syu p7zip unrar

If your hostname is not a FQDN, you must set $myhostname in /etc/amavisd/amavisd.conf. You probably want to set $mydomain too. After that, you probably want to start it like this:

sudo systemctl enable amavisd
sudo systemctl start amavisd

Some ways to check for errors:

systemctl status amavisd
journalctl -xbo short -u amavisd

Postfix

digest of the excellent upstream README

SpamAssassin

todo

ClamAV

todo