Showing 95 open source projects for "multi-threaded"

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  • 1
    Thunderbird for Android

    Thunderbird for Android

    Open Source Email App for Android (fka K-9 Mail)

    ...It embraces modern mobile UI design while supporting robust email protocols (IMAP/POP3) and standards like OAuth for secure logins to services such as Gmail, Outlook, or custom mail providers. The app is built to handle complex mailbox structures, threaded discussions, rich text and HTML content, attachments, and account synchronizations reliably even on cellular connections. With features like unified inboxes, background fetch, push notifications, and configurable swipe actions, Thunderbird Android aims to bring the power and flexibility of the desktop experience to your pocket. ...
    Downloads: 5 This Week
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  • 2
    listmonk

    listmonk

    High performance, self-hosted, newsletter and mailing list manager

    ...Use template expressions, logic, and 100+ functions in subject lines and content. Write HTML e-mails in a WYSIWYG editor, Markdown, raw syntax-highlighted HTML, or just plain text. Highly configurable, multi-threaded, high-throughput multi-SMTP e-mail queues for super fast campaign delivery.
    Downloads: 14 This Week
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  • 3
    Thunderbird for iOS

    Thunderbird for iOS

    Open Source Email App for iOS

    Thunderbird iOS is the official iPhone and iPad email client offering from the Thunderbird project, bringing the capabilities of a feature-rich, open-source email experience to iOS devices with native UI and Apple platform integrations. The app gives users a powerful tool for managing multiple email accounts, including IMAP and POP3 configurations, and supports modern authentication flows like OAuth for popular providers. Designed with mobile usability in mind, it includes familiar gestures,...
    Downloads: 52 This Week
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  • 4
    msgvault

    msgvault

    Archive a lifetime of email and chat. Offline search, analytics

    ...It includes a terminal interface, command-line tools, and an MCP server for connecting archived messages to AI assistants. Users can search, analyze, and read their message history conversationally through compatible AI clients. It also supports scheduled syncs, remote server mode, multi-account setups, and configuration options for personal Gmail or Google Workspace environments.
    Downloads: 17 This Week
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  • AI-powered service management for IT and enterprise teams Icon
    AI-powered service management for IT and enterprise teams

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  • 5
    Notifuse

    Notifuse

    Notifuse is an open-source & modern emailing platform

    ...Notifuse supports both newsletters and transactional emails through a RESTful API, letting organizations maintain full control over their email infrastructure without expensive per-message pricing. The system includes a drag-and-drop MJML email builder, webhook integrations, and multi-provider support for SMTP services and cloud providers, while also tracking opens, clicks, and delivery performance in real time.
    Downloads: 8 This Week
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  • 6
    Anti-Spam SMTP Proxy Server

    Anti-Spam SMTP Proxy Server

    Anti-Spam SMTP Proxy Server implements multiple spam filters

    The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements auto-whitelists, self learning Hidden-Markov-Model and/or Bayesian, Greylisting, DNSBL, DNSWL, URIBL, SPF, SRS, Backscatter, Virus scanning, attachment blocking, Senderbase and multiple other filter methods. Click 'Files' to download the professional version 2.8.1 build 24261. A linux(ubuntu 20.04 LTS) and a freeBSD 12.2 based ready to run OVA of ASSP V2 are...
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    Downloads: 37,773 This Week
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  • 7
    PHPMailer Pro

    PHPMailer Pro

    The Next Generation Mail Transport Class.

    PHPMailer Pro, The Next Generation mail transport class. Full-featured mail transport class. Support for multi-language content and all major encodings. One single file, SMTP built-in. An entirely new email address engine normalizes email addresses and formats to RFC standards. User input of email address in almost any format: strings, arrays, multi-dimension arrays; Simplified setup. Supports HTML amd plain text messages, all types of attachments.
    Downloads: 1 This Week
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  • 8
    Kalkun
    Kalkun is an open source web-based SMS (Short Message Service) manager. It uses Gammu SMSD (part of gammu family) as SMS gateway engine to deliver and retrieve messages from your phone/modem. Documentation is on the wiki: https://github.com/kalkun-sms/Kalkun/wiki Development and source code can be found on github: https://github.com/kalkun-sms/Kalkun/
    Downloads: 20 This Week
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  • 9
    MailCleaner

    MailCleaner

    Anti Spam SMTP Gateway

    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. ...
    Downloads: 6 This Week
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    Build Agents and Models on One Platform

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    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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  • 10
    OpenXP 5

    OpenXP 5

    OpenXP 5 - a multi-protocol offline mail and news reader

    OpenXP 5 is a multi-protocol offline mail and news reader for the text console, supporting internet email, Usenet, Fidonet, ZConnect, etc. It is based on OpenXP (https://sourceforge.net/p/openxp, currently inactive) which is based on CrossPoint (XP) by Peter Mandrella. OpenXP 5 is capable of establishing TLS encrypted connections to POP3, IMAP, SMTP and NNTP based servers and supports the new IPv6 protocol.
    Downloads: 1 This Week
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  • 11
    NOCC
    NOCC is a simple and fast Webmail client which can handle POP3 and IMAP mailboxes and sends email via SMTP. It is written with PHP, has low requirements (no database, frames). Features multi-language support, MIME attachments, displays HTML messages. The installation guide comes with the source code: https://sourceforge.net/p/nocc/code/HEAD/tree/trunk/webmail/docs/INSTALL If you encounter problems or bugs you can always try the current HEAD version: https://sourceforge.net/p/nocc/code/HEAD/tarball?path= Questions, bug reports or support requests are very welcome: https://sourceforge.net/p/nocc/_list/tickets Alternative source code repository: https://github.com/oheil/NOCC
    Downloads: 4 This Week
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  • 12
    FUDforum
    FUDforum is a super fast and scalable discussion forum. It is highly customizable and supports unlimited members, forums, posts, topics, polls & attachments. It can import XML Feeds and sync with USENET groups and Mailing Lists (bi-directional).
    Downloads: 4 This Week
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  • 13
    ictdialer

    ictdialer

    SMS, Fax, Voice Broadcasting and auto dialer Software

    ICTDialer is an open-source, multi-user auto dialer software designed for voice broadcasting and fax broadcasting. It supports both inbound and outbound communications using advanced telephony protocols such as T.38, G.711 pass-through, and SIP-based VoIP communication. ICTDialer is built on top of renowned open-source technologies, including FreeSWITCH, ICTCore communications framework, and a PHP-based Angular framework.
    Downloads: 5 This Week
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  • 14
    Mailbird

    Mailbird

    All your email accounts in one place.

    Mailbird is an intuitive email management application that brings all your email accounts together in one place, making it easier to manage your emails across both Windows and Mac devices. With a single license, Mailbird enables users to track emails, organize their inboxes, and integrate various third-party apps like Slack, Google Calendar, and Dropbox for enhanced productivity. Key features include AI-powered email drafting, customizable workspaces, and the ability to track email opens....
    Downloads: 3 This Week
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  • 15
    ICTFax

    ICTFax

    Open source Fax server software for inbound / outbound internet Faxing

    Note: for binaries and installation instruction please visit official website. http://ictfax.org/ ICTFax is Open Source Fax Server software to send and receive Fax over Internet & Emails developed over Freeswitch, ICTCore and Angular Framework , It works with T.38 and G.711 pass through and feature email to fax, fax to email, web to fax, fax to web and also support fax machines to send and recieve Fax using ATA. Installation...
    Downloads: 3 This Week
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  • 16
    RainLoop Webmail

    RainLoop Webmail

    Simple, modern & fast web-based email client

    RainLoop Webmail is a modern, fast, and lightweight web-based email client. It supports IMAP and SMTP protocols, allowing users to access and manage their email accounts through a web interface. RainLoop offers features like multi-account support, a responsive UI, and integration with popular email providers. It is self-hosted, giving users control over their email data.
    Downloads: 5 This Week
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  • 17
    OpenEMM e-mail & marketing automation

    OpenEMM e-mail & marketing automation

    software for email automation (newsletters, transaction mails, etc.)

    ...You will find the latest version of OpenEMM here: https://wiki.openemm.org OpenEMM is a browser-based enterprise application for email automation like info and marketing newsletters, transaction mails or multi-stage email campaigns. OpenEMM offers tons of features for professional users, among them: a great user interface, template-based HTML mailings, automatic bounce management, mail opening and link tracking, lots of graphical realtime statistics, a content management system, self-defined and behaviour-based target groups, a multi-queue mail backend for maximum sending performance, a time-driven automated data import and export feature, an extensive set of webservices, a plugin interface to easily extend the core functionality, a scripting feature to enhance the functionality of OpenEMM with triggerable customized actions and an audit-proof user activity log.
    Downloads: 2 This Week
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  • 18
    TrumpetBox Contactless Kiosk  Admin

    TrumpetBox Contactless Kiosk Admin

    Guest WIFI and SMS Marketing Kiosk System

    The TrumpetBox Contactless Kiosk is a business guest WIFI and SMS marketing kiosk system that turns your clients mobile phone into an information kiosk. TrumpetBox kiosk is an access point that your clients connect to while at your business location and view your interactive kiosk interface to perform services or opt-in to receive marketing and outbreak notifications.
    Downloads: 0 This Week
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  • 19

    HERMES Mail

    The cult-favourite eMail client formerly known as Qualcomm Eudora

    eMail traffic is on the rise. With over 100 man-years of development time behind it and a clean, intuitive interface that makes handling messages a breeze, Hermes Messenger (formerly known as QUALCOMM Eudora) is more than a way to send and receive mail: it's a powerful management tool with features to increase your productivity and enhance your communications. It is the best eMail program for people who get lots of it. If you're not yet one of them, you soon will be. Take control of your...
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    Downloads: 20 This Week
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  • 20
    Python Milter

    Python Milter

    Python API for Sendmail Milters.

    Python API for Sendmail Milters. Related modules provide features such as content filtering, SPF, and reputation tracking. Changes are posted first to https://github.com/sdgathman/pymilter and related repos.
    Downloads: 8 This Week
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  • 21
    RainLoop Webmail (PHP)

    RainLoop Webmail (PHP)

    Simple, modern & fast web-based email client

    Modest system requirements, decent performance, simple installation and upgrade, no database required - all these make RainLoop Webmail a perfect choice for your email solution.
    Downloads: 0 This Week
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  • 22

    imaplib2 module

    Threaded Python IMAP4 client

    Python IMAP4rev1 mail protocol client class using threads for parallel operation. PLEASE NOTE - active development of this module has now moved to https://github.com/imaplib2/imaplib2
    Downloads: 0 This Week
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  • 23

    PVF Server

    Multi-protocol server written in Java

    This is a multi-protocol server written in Java that can be extended to support any protocol. Configuration is done through the application interface or through a web based interface. An HTTP web server is built-in. The project is NOT intended for production runs. It was not updated since 2004. The current version was ressurected only as a teaching aid.
    Downloads: 0 This Week
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  • 24
    icemac.addressbook

    icemac.addressbook

    Multi user address book application accessable through the web.

    Multi user address book application accessable through the web. Store, edit, search and export addresses, phone numbers, … using a web browser. Code moved to https://bitbucket.org/icemac/icemac.addressbook Documentation see https://icemacaddressbook.readthedocs.io/en/latest/ New releases (after 6.0.2) see https://pypi.org/project/icemac.addressbook/#history
    Downloads: 0 This Week
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  • 25

    Ream-C

    Ream-C is a console-based full screen mail client

    Ream-C is a free and open source console-based full screen mail client for Linux, and Unix-Like OSes. . It can handle multi-megabyte large mail-files in spool areas or file folders without problems. It has been updated to compile and work under Solaris and Linux. Installation is also simpler. Ream-C is based on the original "ream" project (Paul Dourish), contains additional bug fixes.
    Downloads: 0 This Week
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