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

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  • 1
    Fetchmail - the mail-retrieval daemon

    Fetchmail - the mail-retrieval daemon

    Client daemon to move mail from POP and IMAP to your local computer

    Fetchmail is a mail retrieval daemon that can download messages from POP3, IMAP, ODMR and ETRN-based stores, with SSL/TLS security including certificate verification, and pass downloaded mail to a local SMTP or LMTP server, or a message delivery agent such as maildrop.
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    Downloads: 334 This Week
    Last Update:
    See Project
  • 2

    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 eMail before it takes control of you! Hermes provides industrial-strength communication, free of ads and free of cost.
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    Downloads: 39 This Week
    Last Update:
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  • 3
    hMailServer is a SMTP/POP3/IMAP server for Windows. Data is stored in MySQL/MSSQL database and is easily accessed using the COM library. Project info, trackers and downloads has moved to www.hmailserver.com.
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    Downloads: 6 This Week
    Last Update:
    See Project
  • 4
    IndiMail
    Highly scalable/configurable Messaging Platform allowing users in a domain to be distributed on multiple hosts, has multiple queues. Provides virtual domains/users in MySQL. Modern MSP class qmail replacement with ESMTP, POP3/IMAP, QMTP, QMQP support
    Leader badge">
    Downloads: 1 This Week
    Last Update:
    See Project
  • The All-in-One Commerce Platform for Businesses - Shopify Icon
    The All-in-One Commerce Platform for Businesses - Shopify

    Shopify offers plans for anyone that wants to sell products online and build an ecommerce store, small to mid-sized businesses as well as enterprise

    Shopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.
    Learn More
  • 5
    GreenMail is an intuitive and easy-to-use test suite of email servers for testing purposes. Supports SMTP, POP3, IMAP with SSL socket support, and configurable user accounts and credentials. All in 100% Java. WE'VE MOVED TO GIT HUB: https://github.com/greenmail-mail-test/greenmail
    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    Heirloom mailx (formerly known as "nail") is intended provide the functionality of the POSIX mailx command with additional support for MIME messages, IMAP (including caching), POP3, SMTP, S/MIME, message threading/sorting, scoring, and filtering.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    libmail is a C library intended to help programmers when adding mail checking and retrieving capabilities to their applications, supporting popular mail protocols like IMAP and POP3 as well as *nix-like mailboxes.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    STS - SupportTicketsystem and Knowledgebase - auto response, Mail - parsing , mysql or mssql, user can rate tickets which where published in the knowledgebase for professional use user groups, admin - groups, ticketstatus - support iv'e read message
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    B-Client is a Windows DLL that provides internet communications protocols. This C++ DLL supports SMTP, POP, IMAP and NNTP protocols with support for other open internet communication protocols in the future.
    Downloads: 0 This Week
    Last Update:
    See Project
  • AI-based, Comprehensive Service Management for Businesses and IT Providers Icon
    AI-based, Comprehensive Service Management for Businesses and IT Providers

    Modular solutions for change management, asset management and more

    ChangeGear provides IT staff with the functions required to manage everything from ticketing to incident, change and asset management and more. ChangeGear includes a virtual agent, self-service portals and AI-based features to support analyst and end user productivity.
    Learn More
  • 10
    Blue HttpMail is a library that connects to HTTPMail servers (such as hotmail.com) and a proxy that allows POP3, IMAP and SMTP access to those servers. Blue HttpMail is being developed using the open source library Blue http://bluelib.sourceforge.net
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    C# Email Server (CES). Implements SMTP and POP3 components that can be used as a standalone server or as components in other applications.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    API similar to Java-Mail (TM). This API is to be in C# and will be available for the dotNet-aware platforms.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    You've Got Mail: An application that sits down in system tray and checks mails as scheduled. It is *NOT* a mail-reader, only an agent that informs about the current status.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Set of pure useful Java utilities taking care of common tasks and avoiding re-write of code
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    The postfixadmin application rewrite with ExtJS and ADODB. I would like to create a professional and modern GUI. Backend: php5, adodb Frontend: Extjs 2.2.1
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    It's intended to make a Mailer that's work with (S)IMAP , POP and SMTP . In the future it's should be possible to convert this Flex3 project into an desktop application by AdobeAIR.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Foedus Mail is a mail server written in Java. The goal is to produce stable IMAP, SMTP, and POP3 support and then to build upon and refine it.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    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...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    IDMS DBMA is an effort to develop a highly scalable (c10k complient) plugin based mail agent aimed at fighting spam & viruses. Hopefully replacing hard-to-maintain, complex, resource hungry configurations used by small to large users today.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    This is an email server written in C#. The server handles protocol, and a plugin architecture allows developers to create their own authentication/mail storage system, making this one of the most scalable email servers in the world. 2 plugins included.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    A proxy server for gmail, that enables you to fetch your gmails using IMAP or POP3, and send mails by SMTP via your gmail account.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    JFetch is an application to download your email through protocols like POP3 and IMAP. The decision of whether to download a mail or not is made through a sequence of filters. The user can easily add customized filters to this sequence.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    JFetcher is a Java Fetchmail application, which is able to fetch emails from a pop3 or imap mailbox and deliver it to another smtp host. The ideal exercise for JFetcher is to fetch emails from a global mailbox for relaying them to local accounts.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    LIMeTool (pronounced like the fruit), is intended to be a simple and easy interface for managing accounts on an integrated Sendmail/LDAP/Cyrus IMAP installation. It's written in PHP and is realitively easy to configure and expand.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Lazyinstaller provides installation scripts for well known unix software. currently only qmail Lazydog is available. The script installs qmail with some patches for security and functionality, vpopmail, IMAP, ezml, qmailadmin and vqadmin tools and more
    Downloads: 0 This Week
    Last Update:
    See Project
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