The mail-filter category contains email filtering software.
| afew | Initial tagging script for Notmuch |
|---|---|
| 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 |
| courier-pythonfilter | Python filtering architecture for the Courier MTA |
| 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 |
| MailScanner | Free Anti-Virus and Anti-Spam Filter |
| mapson | A challenge/response-based white-list spam filter |
| milter-regex | A milter-based regular expression filter |
| mimedefang | Antispam, antivirus and other customizable filters for MTAs with Milter support |
| normalizemime | Helper program to normalize MIME encoded messages |
| opendkim | A milter providing DKIM signing and verification |
| opendmarc | Open source DMARC implementation |
| policyd | Policy daemon for postfix and other MTAs |
| policyd-weight | Weighted Policy daemon for Postfix |
| popfile | Anti-spam bayesian filter |
| postforward | Postfix Sender Rewriting Scheme forwarding agent |
| postfwd | Versatile Postfix policy server with a flexible ruleset based configuration |
| postgrey | Postgrey is a Postfix policy server implementing greylisting |
| postsrsd | Postfix Sender Rewriting Scheme daemon |
| 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 |
| rmilter | Another sendmail milter for different mail checks |
| rspamd | Rapid spam filtering system |
| scmail | a mail filter written in Scheme |
| sieve-connect | Sieve Command Line Interface |
| sigh | S/MIME signing milter |
| spamassassin | An extensible mail filter which can identify and tag spam |
| spamassassin-botnet | SpamAssassin plugin that attempts to detect messages sent by a botnet |
| 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 |
| zdkimfilter | DKIM filter for Courier-MTA |