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

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • Propel Software: Product Value Management Platform for Manufacturers Icon
    Propel Software: Product Value Management Platform for Manufacturers

    For modern product companies that need to connect product and commercial teams successfully

    Propel is a cloud-native Product Value Management platform that unifies PLM, QMS, and PIM in one connected system, giving manufacturers complete visibility and control across the entire product lifecycle. It provides a single source of truth for all product data, streamlines change management, strengthens quality and compliance processes, and accelerates time-to-market by eliminating the silos and manual steps that slow teams down.
    Learn More
  • 1
    QmailAdmin is a web interface for managing email addresses in virtual domains created by Vpopmail.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 2
    Mailman is the GNU mailing list manager. It provides standard list management features, integrated with a web interface. Please note: the subversion repository has been retired. Please see http://wiki.list.org/x/DgAJ for details.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 3
    Claws Mail
    Claws Mail is a GTK+ based, lightweight, and fast e-mail client and newsreader. Supports POP3, APOP, IMAP, SMTP, SMTP AUTH, NNTP, LDAP, multiple accounts, spell-checking, addressbook, SSL, GPG, filtering, i18n, & more. It is further extended by plugins.
    Downloads: 15 This Week
    Last Update:
    See Project
  • 4
    Abuse is a simple program that helps people fight spam. It will "read" any e-mail header you indicate, go on-line and check the various NICs, open relay DBs... prepare/send an email (lart) to the spammer's ISP in order for your voice to be heard.
    Downloads: 3 This Week
    Last Update:
    See Project
  • Create and manage the email signature you need Icon
    Create and manage the email signature you need

    For companies and organizations that need an email signature solution

    With WiseStamp it’s easy to unify your brand and turn your emails into a powerful marketing tool. Get the most out of your emails with a professionally designed custom email signature.
    Learn More
  • 5
    OpenEMM e-mail & marketing automation

    OpenEMM e-mail & marketing automation

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

    This is an archive for old versions of OpenEMM. 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: 1 This Week
    Last Update:
    See Project
  • 6
    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. It comes in the form of virtual machine templates.. - fully compatible with any SMTP mail server (Exchange, Zimbra, O365,...)
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    P3Scan is a fully transparent scanning proxy-server for email clients. It provides scanning of incoming/outgoing email messages for Virus''s, Worms, Trojans, Spam, and harmfull attachments. It can also parse messages for web-bugs.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 8
    Note! Code and issues are maintained at https://github.com/sba1/simplemail. SimpleMail is a simple to use but powerful mail client. It supports the SMTP, POP3 and IMAP (in a simple form) protocols. Furthermore, among much other features, it is capable of showing HTML mails and can identify spam mails by using a Bayesian filter.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 9
    This is a simple command line tool, which will solve the problem of full mailboxes with stuff you don't want to lose. It fetches all the mail from any POP3 mailbox account and generates a searchable HTML archive on your local harddrive. OS: Unix/Linux
    Downloads: 0 This Week
    Last Update:
    See Project
  • Unimus makes Network Automation and Configuration Management easy. Icon
    Unimus makes Network Automation and Configuration Management easy.

    Deploying Unimus to manage your entire network requires only minutes, allowing for rapid deployment without headaches.

    We aim to make automation, disaster recovery, change management and configuration auditing painless and affordable for a network of any size.
    Learn More
  • 10
    Citadel is a unique fusion of groupware, cms, bbs, and more...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    ClamMail is POP3 email proxy for Windows with integrated ClamAV antivirus engine. ClamMail is an Windows antivirus that protects your PC from viruses transferred via mail. Works with Outlook,Thunderbird,Eudora and many others using popular POP3 protocol
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    Draconis is a suite with several Internet Programs for the ATARI platform. It contains clients and drivers for a sucessful internet access.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    The Mailtext MUI custom class package (for Amigas) is especially designed to display electronic messages. Its main features cover: Handling of font attributes, highlighting of quoted text passages and highlighting and handling of URLs.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Mailfilter to secure maildrops while fetch mails from a remote mail server and prevent mailloops, unwanted resend to external receipients and/or virus and spam.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    PythonPal is an interace to write plugins in python for the famous anti spam software spampal.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Graphical OS Kernel compiled with gcc 4.6.1 and nasm 2.09.08
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    SIMpad by Siemens is a multimedia device with a screen resolution of 800x600x16 and is based on StrongARM processor SA1110 . The goal of this project is to provide a full Linux operating system with kernel and applications.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    SimpleCheck E-Mail Notification Client
    SimpleCheck is a fast, low resource, server oriented, Windows System Tray based E-Mail Notification Client with a simple UI that regularly checks multiple POP3 E-Mail accounts. Many full client features; immune to viruses; use to delete SPAM mail.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    SpamPal is a mail classification program that can help separate your spam from the mail you really want to read. SpamPal includes support for POP3, IMAP4 and SMTP accounts and can be extended by dozens of plugins and tools and is available in 6 languages
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    A Mozilla Thunderbird MUA Extension/Plugin for Auto-Archiving (and converting/indexing) Mails from Folders or by filter-selection
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    UnityCA is a Certificate Authority "front end" based on the Community-Oriented CA (COCA) model, which was primarily developed for non-profit "free CAs." Organizational and end-user interfaces provide trusted web management of the installed CA (eg ElyCA).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    XCmail is a MIME and multi POP3 server capable mailtool for X11 using the Xclasses layout library. XCmail was designed completely object orientated and by this may be improved easily. <p> XCmail has its own server in the internet. Take a look on it.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    YAM - Yet Another Mailer

    YAM - Yet Another Mailer

    YAM - The E-mail client for Amiga computers

    YAM (short for Yet Another Mailer) is a commonly used MIME-compliant Internet mailer written for AmigaOS computers. It supports POP3, SMTP, TLSv1/SSLv3, multiple users, PGP, hierarchical folders, filters, a configurable GUI, an ARexx interface and more...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Elmo is a feature-rich console mail client for UN*X power users. It integrates functionality commonly realised by separate pieces of software in other mailers.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Free implementation of the SMTP protocol for C++
    Downloads: 0 This Week
    Last Update:
    See Project
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