...Spoofchecking and DNSCheckValidation validation requires that your PHP system has the PHP Internationalization Libraries (also known as PHP Intl). PHP version upgrades will happen to accomodate to the pace of major frameworks. Minor versions bumps will go via minor versions of this library (i.e: PHP7.3 -> v3.x+1). Major versions will go with major versions of the library. EmailValidatorrequires you to decide which (or combination of them) validation/s strategy/ies you'd like to follow for each validation. Note that warnings are deviations from the RFC that in a broader interpretation are acceptded. It's easy to extend! You just need to implement EmailValidation and you can use your own validation.
Fast Bayesian spam filter along lines suggested by Paul Graham
The bogofilter package implements a fast Bayesian spam filter as
suggested by Paul Graham in "A Plan For Spam"
<http://www.paulgraham.com/spam.html>. It is written in C. Supported platforms: Linux, FreeBSD, Solaris, OS X, HP-UX, AIX, RISC-OS, ...
SMWrapper receives e-mails as standard sendmail program, filters them for X-PHP-Script in the Header and manages limits and informs the user and administrator when a limit is reached. After processing, the real sendmail program gets invoked.
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Ruby script framework for the encryption and decryption of email according the GPG/MIME Format (RFC 3156). It can be used for e.g. for Apple' Mail as replacement for GPGMail.
Evochallenge is a simple Perl based challenge/response mail filter for Evolution on Linux. If you run Evolution, and get buried in spam, Evochallenge can help.
GOSSiP is a P2P email reputation system. It uses social networking theory to track email sender spam behavior worldwide. Writtten in C and Perl, GOSSiP has compiled on Linux, Solaris, FreeBSD, and OS X. Works with multiple mailservers and spam filters.
SPAMSNAIL is a anti-spam filter dedicated to end-users with a slow / non permanent connection to their mail server. It is written in Perl and uses the Bayes system.
SPAM-Buster is a Java application for filtering SPAM based on statistical algorithms (currently Bayesian). The platform independant application can be used as graphical end-user client and additional service for mail server.
smm is a anti-spam, mail-shaper, delete-on-server software thought for users who have a slow dialup connection and are sick and tired of downloading 1MB a day of spam and Win32-worm-attached messages.
Dougal is a Free (LGPL) mail-washing program for the POP3 protocol, written in Perl. It supports any operating system that supports Perl 5.x and TCP/IP (Perl IO::Socket module).
Spaxy is a POP3 proxy for email classification. It includes robust filters based on booleans operators. Queries can analyze multipart and encoded (qp/base64) messages. For SPAM detection on most platforms (QT) and clients.
Spitman is a spam filter, written in python and intended for desktop use. It will fetch the mail from the mailserver and put this in a local file, wich your mail client can check.
Stop Spam - Fight back! Protect your own email address ard/or generate lists of fake email adresses for easy distribution on websites, weblogs or in newsgroups. This way we will pollute the spammers email-databases with a lot of trash...
This project uses ICQ-style logic against a POP3 mailbox. Any incoming mail is checked against known users. Any not found can be either a) sent a "request authorization" form, b) ignored, or c) deleted.
Ardok Mail reader (ARM) is a mail checker written in perl/tk.
The main goal of the programm is to manage the mails sent on a pop3 server. But it can also be used to write and read mails (on the server or on the hard drive).
MAFIVIHE filters your mail box finding the mistakes that SPAM'ers leave on the message, like storing empty values on "To" field. GUI-based, it's not 100% automatic to prevent misunderstanding.
OzoneFarm is a eCommunity-building project aimed at promoting open source computing and distribution and generation of open content. The goals and strategies for forming the community are being discussed in an open forum.
ProcLog is a simple to use set of scripts to generate reports against your procmail log file. Proclog reports various statistics and can be run from the command line or as a X Windows GUI.
Mail Receipt is a collection of utilities used to seed, receive, and summarize email receipts to be sent by HTML enabled mail readers without the mail recipeient's knowledge.