Open Source PHP Email Spam Filter Software

MailCleaner Open Source Edition is now discontinued but will continue under the spamtagger project https://github.com/SpamTagger [antispam] MailCleaner is an anti-spam / anti-virus filter SMTP gateway with user and admin web interfaces, quarantine, multi-domains, multi-templates, multi-languages. Using Bayes, RBLs, Spamassassin, MailScanner, ClamAV. Based on Debian. Enterprise ready. MailCleaner is an anti spam gateway installed between your mail infrastructure and the Internet. It includes a complete GNU/Linux OS and a graphical web interface for user and administrative access. It comes in the form of virtual machine templates.. - fully compatible with any SMTP mail server (Exchange, Zimbra, O365,...)

SmartSieve is a web based graphical user interface for creating and managing sieve scripts for mail filtering and vacation messaging on a cyrus imap mail server. Written in PHP, SmartSieve is easy to configure and use.

MailZu is a simple and intuitive web interface to manage Amavisd-new quarantine. Users can view their own quarantine, release/delete messages or request the release of messages. MailZu is written in PHP and requires Amavisd-new version greater than 2.3.0

A multiuser spam filter for IMAP servers using a simple statistical method. Training is done within any imap mail client. You simply move the mails into the right folders to train the tool. Can be installed server or client side. Using PHP(imap) + Mysql.

SpamCheck is an email scanner, comprising anti-virus, spam scanning and a quarantine / management interface.

A.I. security app. Development ceased.

Anti-Bot Form Mailer is a PHP script that helps webmasters reducing spam received via their contact or support form.

Archer-Milter , A Sendmail spam filtering solution for system administrators.

Botkiller is a php-script which helps to flood the databases of bots, searching the web for email-adresses. Its goal is to create a huge network of servers running the script and to trap the bots in it while feeding it useless adresses.

An open-source mail filter program with web-based tuning tool to deliver only wanted mail by using block/buddy lists and naive Bayesian statistical analysis. Gets POP3 mail. Uses php, sh, sendmail, html and javascript. Includes elaborate User Guide.

DefangAdmin is a web-based interface in PHP for MIMEDefang+SA+Sendmail. Ideal for web hosting companies and ISPs to use MIMEDefang+SA to quarantine spam and send a daily HTML report to end-users who can then sort their spam using web-based interface.

This email appliance is to help anyone to setup and maintain their full functional email server with much less effort by using virtual appliance technology.

A library for validating emails against several RFC. This library aims to support RFCs 5321, 5322, 6530, 6531, 6532, and 1035. Composer is required for installation. 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.

An advanced qmail distribution based on qmail-sql which has SMTP, SMTPS, POP3, POP3S, IMAP, IMAPS services, a content scanner, spoofing protections, SMTP AUTH support, SMTP-after-POP/IMAP, PHP5 API, SPF support and much more...

IFax2Hyla is a standalone gateway that accepts fax requests from "Internet Fax" capable devices (such as many modern fax machines) and sends them via a Hylafax Server. Its goal is to implement the standards of the IETF (RFC 3965 & related) and ITU (T.37)

Linasf is a PHP implementation of a SpamAssassin-like spam filter. It uses Bayesian Filters, User-defined rules and Artificial Neural Networks to obtain excellent results. Training and integration with current PHP system is very easy. (uses MySQL as DB)

MailFilter Web Utilities: A PHP based solution to analizing mailfilter's log files and editing mailfilterrc.

Web interface for Qmail-LDAP. Uses MySQL to add many more features.

OHAS - Open Home Automation Server is a scalable open system solution for home automation

OpenBottle is a per user anti-spam email system based on a sender authenticated whitelist mechanism. The core of the system is written in Perl, with a web driven user interface in PHP.

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.

PHP Verify Mail designed to partially prevent automatic/manual registrations based on entering invalid email like user@unexiste.nt which is regexp-valid but not correct. It checks DNS records to ensure domain & MX ok. Same as "phpvmail" project.

libsieve-php is a library to manage and modify sieve (RFC5228) scripts. It contains a parser for the sieve language (including extensions) and [not yet] a client for the managesieve protocol. It is written entirely in PHP 5.

a public email form writen in php with template design ... file transfers, session support, XHTML compient with default templates, selectable to addresses AND hidden true email addresses, MX record checking for false email addresses

PHPMailTo: is a PHP processor for email address links, it attempts to thwart the practices of spammers who harvest emails. It does not suffer from the flaws of other popular practices like JavaScript fixes, mailto: modifications or Unicode translations.