Install spamass-milter by entering the following commands in the terminal:
sudo apt update sudo apt install spamass-milter
Description:
milter for filtering mail through spamassassin
A milter used to filter mail through spamassassin (spamc) early in the delivery process. Enables site wide filtering through spamassassin without speed penalties incured by setting up and tearing down procmail processes for each e-mail. . Will work with sendmail, postfix, or any other MTA which can use milters. . - Administrator (or user) specified rejection threshold - User specific spamassassin settings - Header-only modification
Homepage: http://savannah.nongnu.org/projects/spamass-milt/
Version: 0.4.0-1
Section: universe/mail