$ apt-cache search spamassassin
[...]
fuzzyocr - spamassassin plugin to check image attachments
[...]
sa-exim - Use spamAssassin at SMTP time with the Exim v4 MTA
sa-learn-cyrus - Train SpamAssassin with spam/ham from user's imap mailbox(es)
spamass-milter - milter for filtering mail through spamassassin
spamassassin - Perl-based spam filter using text analysis
spamc - Client for SpamAssassin spam filtering daemon
spampd - spamassassin based SMTP/LMTP proxy daemon
fuzzyocr3 - spamassassin plugin to check image attachments