Browse free open source PHP Email Software and projects below. Use the toggles on the left to filter open source PHP Email Software by OS, license, language, programming language, and project status.

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
    Start Free
  • Simple, Secure Domain Registration Icon
    Simple, Secure Domain Registration

    Get your domain at wholesale price. Cloudflare offers simple, secure registration with no markups, plus free DNS, CDN, and SSL integration.

    Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
    Sign up for free
  • 1
    All effort are being directed to the Squirrelmail Project which is also here on Source Forge. SquirrelMail has an excellent start on something that will be spectacular in the years to come. Go check it out at www.squirrelmail.org
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    Allows you to create different newsletters for your Site (e.g. "New Products", "News"...) and to send them as plain text or mime-encodet mail to your users. (PHP, PEAR, MySQL/or supported by PEAR::DB) Includes a class to easy add and remove subscriber
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    The BlackBox - austrians oldest, still existing online community is about to develope a new collaboration-ware.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Level Up Your Cyber Defense with External Threat Management Icon
    Level Up Your Cyber Defense with External Threat Management

    See every risk before it hits. From exposed data to dark web chatter. All in one unified view.

    Move beyond alerts. Gain full visibility, context, and control over your external attack surface to stay ahead of every threat.
    Try for Free
  • 5
    EGroupware Enterprise Collaboration
    EGroupware has moved to Github, please find all our downloads there: https://github.com/EGroupware/egroupware/releases EGroupware is a multi-user, web-based groupware suite. Currently available modules include: email, addressbook, calendar, infolog (notes, to-do's, phone calls), content management, wiki, project management, tracker, timesheet, knowledge base, CalDAV/CardDAV
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    The Exim Ldap Mail Administrator is a webfrontend for your mailserver environment running EXIM with LDAP. It supports multiple virtual maildomains including users and aliases. Filter and vacation settings will be available soon.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    FalconMail is a PHP/MySQL Webmail client. It runs on a webserver, allowing access from anywhere. It supports IMAP, POP3, IMAP folders, and eventually IMAP w/ SSL. It will also eventually incorporate many features like those in Microsoft Outlook, or Xim
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    - development stopped! - GATMAN - The first known combination of a network/user administration and a groupware solution - Latest technologies such as JAVA,XML,JSP and strong encryption are used - Modular design, high scalability - Accessible by client an
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    The goal of this project is to offer a Webmail that can manage more than only one mail account and to offer some advanced features like client mail application (Outlook, Thunderbird, Evolution...).
    Downloads: 0 This Week
    Last Update:
    See Project
  • Build Securely on Azure with Proven Frameworks Icon
    Build Securely on Azure with Proven Frameworks

    Lay a foundation for success with Tested Reference Architectures developed by Fortinet’s experts. Learn more in this white paper.

    Moving to the cloud brings new challenges. How can you manage a larger attack surface while ensuring great network performance? Turn to Fortinet’s Tested Reference Architectures, blueprints for designing and securing cloud environments built by cybersecurity experts. Learn more and explore use cases in this white paper.
    Download Now
  • 10
    An IMAP-Management web interface for use with courier imap , procmail and any mta that delivers mail through procmail.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Webmail with support for MIME mail, address book, plugin system, differrent themes and languages. Runs on PHP, MySQL and connects to IMAP servers.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    This plugin enables Roundcube to access the addressbook of the user in a Kolab-Envoirenment. So you can keep your addresses in Roundcube in sync with the address in your other (Kolab-enabled) PIM-clients (like Thunderbird, Outlook and so on).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    LED Lens Information Network
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    An OpenSource Software Release Code based on Web using PHP, JS, AJAX and others....
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    MadMail is a simple Webmail client which can handle POP3, SMTP, and IMAP servers. It is written with PHP (Sessions) an can displays HTML messages and MIME attachments. Features multi-language support No Database required
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    NewsletterManager allows you to manage an (almost) unlimited number of email-addresses and send as many Newsletters as you want. It is based on PHP-GTK (http://gtk.php.net/), which makes it cross-platform compatible.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    PHP Mail Central (phpMC) is a web based multiuser email client written in PHP. It uses a mysql backend to store all collected emails (from POP3 or IMAP4 accounts) in a local database.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    PHPGTK-Inlook should be, when finished a small business solution and alternative for MS Outlook and MS Exchange Server because this software is too expensive for small business firms.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    PHPLetter ist ein Multiuser Newsletterscript auf PHP/MySQL Basis. Man kann Newsletter senden, speichern und zwischen Benutzern austauschen. Peronalisierte Newsletter sind ebenso möglich wie das senden von Text / HTML Mails oder beidem.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    PHPMyWebHosting (PMWH) will provide a gui viewed in a browser, which lets you adminstrate postfix-sql-based (mySQL, PostGre) emailaddresses, Apache Virtual Hosts, DNS-zones etc. When completed, PHPMyWebHosting will provide a complete webhosting-Interface
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    IMAP compatible eMail reader integrated into PHProjekt. 8-bit compliant. Easily adaptable. Support for all PHProjekt languages
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    NOTICE: Keep in mind that POP3ye is alpha software and by definition it is a long way from finished. POP3ye is a fully featured web-based e-mail client written in Object Oriented PHP 5. It ony supports the POP3 protocol.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23

    PoCoMy

    Postfix + Courier + Mysql Admin Webfrontend

    PoCoMy: Postfix + Courier + Mysql :: Webfrontend for administration. Features: Virtual domains, forwarding, aliases, sender aliases, multi user, multi language, privileges system, delegation of rights per domain, ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    A collection of functions to assist team work within a small to medium enterprise: Address Book, Calendar, Timesheet, Document Management, Email
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Downloads: 0 This Week
    Last Update:
    See Project
Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.