Install spamc by entering the following commands in the terminal:
sudo apt update sudo apt install spamc
Description:
Client for SpamAssassin spam filtering daemon
spamc is the client to communicate with spamd, the daemonized form of SpamAssassin (see the spamassassin package). It is written in C for maximum speed and minimum loading overhead. . spamc is quite useful for integrating spamassassin into an MTA or into a .procmailrc file because of its speed. . This package is useless unless you have spamassassin installed, either on this machine or another local machine (i.e. a mail server).
Homepage: http://www.spamassassin.org/
Version: 3.4.1-8build1
Section: mail