In the last part of this chapter, we look at the SpamAssassin application: how to use it and how to integrate it into your mail infrastructure.
SpamAssassin is broken down into the following major user-accessible components:
spamassassin— The Perl program meant to be used as a per-user command line interface. It is not designed to be used in high-volume environments; instead, use spamc/spamd or call the libraries directly.
spamc— A very efficient interface to the Spamassassin processor, written in C. It is meant to be called from scripts and designed to communicate with spamd, the daemonized version of spamassassin.
spamd— The daemonized version of the spamassassin program. It is meant to be used with spamc, but it doesn’t ...