All packages

mimedefang Antispam, antivirus and other customizable filters for MTAs with Milter support
zdkimfilter DKIM filter for Courier-MTA
afew Initial tagging script for Notmuch
postforward Postfix Sender Rewriting Scheme forwarding agent
courier-pythonfilter Python filtering architecture for the Courier MTA
opensmtpd-filter-rspamd OpenSMTPD filter for putting emails through rspamd
pyzor A distributed, collaborative spam detection and filtering network
rmilter Another sendmail milter for different mail checks
rspamd Rapid spam filtering system
postsrsd Postfix Sender Rewriting Scheme daemon
sigh S/MIME signing milter
MailScanner Free Anti-Virus and Anti-Spam Filter
amavisd-milter sendmail milter for amavisd-new
amavisd-new High-performance interface between the MTA and content checkers
bmf A fast and small Bayesian spam filter
bogofilter Bayesian spam filter designed with fast algorithms, and tuned for speed
couriersrs SRS (Sender Rewriting Scheme) wrapper for the courier MTA
dcc Distributed Checksum Clearinghouse
dkimproxy An SMTP proxy server for adding DKIM headers
dovecot_deleted_to_trash Deleted to trash IMAP plugin for Dovecot
dspam A statistical-algorithmic hybrid anti-spam filter
exim-geoip This is an IPv4 and IPv6 capable GeoIP dlfunc library for Exim
exim-p0f This is p0f version 3 dlfunc library for Exim
gld A standalone anti-spam greylisting algorithm on top of Postfix
imapfilter An IMAP mail filtering utility
libmilter The Sendmail Filter API (Milter)
libsieve A library for parsing, sorting and filtering your mail
libspf2 libspf2 implements the Sender Policy Framework, a part of the SPF/SRS protocols
libsrs2 libsrs2 is the next generation Sender Rewriting Scheme library
libsrs_alt Sender Rewriting Scheme library for use with Exim
maildrop Mail delivery agent/filter
mailfilter Mailfilter is a utility to get rid of unwanted spam mails
mapson A challenge/response-based white-list spam filter
milter-regex A milter-based regular expression filter
normalizemime Helper program to normalize MIME encoded messages
opendkim A milter providing DKIM signing and verification
opendmarc Open source DMARC implementation
policyd-weight Weighted Policy daemon for Postfix
policyd Policy daemon for postfix and other MTAs
popfile Anti-spam bayesian filter
postfwd Versatile Postfix policy server with a flexible ruleset based configuration
postgrey Postgrey is a Postfix policy server implementing greylisting
procmail Mail delivery agent/filter
pypolicyd-spf Python-based policy daemon for Postfix SPF verification
razor Distributed, collaborative spam detection and filtering network
rblcheck Perform lookups in RBL-styles services
scmail a mail filter written in Scheme
sieve-connect Sieve Command Line Interface
spamassassin-botnet SpamAssassin plugin that attempts to detect messages sent by a botnet
spamassassin An extensible mail filter which can identify and tag spam
spambayes An anti-spam filter using on Bayesian filtering
spamdyke A drop-in connection-time spam filter for qmail
spampd spampd is a program to scan messages for Unsolicited Commercial E-mail content
spamprobe Fast, intelligent, automatic spam detector using Bayesian analysis
sqlgrey A postfix policy service implementing a grey-listing policy
tmda Python-based SPAM reduction system