Browse free open source Email Clients and projects for Windows below. Use the toggles on the left to filter open source Email Clients 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
  • 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
    GoldBug - Encrypted Communications

    GoldBug - Encrypted Communications

    Chat Messenger. E-Mail-Client. Websearch. Filetransfer.

    GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger & a file transfer. Also included is an URL-RSS-DB & a p2p web search. Current vers. w/ McEliece Algorithm. GoldBug has been 2013 - 2023 ten years just another Graphical User Interface of the Spot-On Encryption Suite. Main GUI features: Minimal & colorful Interface with Tabs in the East. Microsoft & Qt MinGW deprecated Win32 & for Compiling: ● https://sourceforge.net/p/goldbug/wiki/compiling As Spot-On implemented the minimal GB-concept & Nuvola Icons, GoldBug has now been fully integrated into Spot-On Win64: Just choose Tabs at East & Mini-View in Options - w/ Nuvola Icons of course! Voilá! & Many Thanks, Pro-Files can be found archived at ● current source: https://github.com/textbrowser/spot-on ● EN Manual: https://www.amazon.com/dp/3749435065 ● DE: https://compendio.github.io/goldbug-manual-de/ ● Study: https://www.amazon.com/asin/dp/3750408971
    Downloads: 19 This Week
    Last Update:
    See Project
  • 2
    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: 1 This Week
    Last Update:
    See Project
  • 3
    Mail8 is a simple webmail application written in PHP which can be used and integrated in any Email Server supporting IMAP protocol.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 4
    Aegis Implicit Mail (AIM)

    Aegis Implicit Mail (AIM)

    Send Mime and Smime Emails to Any Type of Mail Server

    Aegis Implicit Mail is a free and open source library which is designed to provide fast and developer friendly API to send emails using SMTP ports. Binaries are available in the form of NuGet package: https://www.nuget.org/packages/AIM Please check http://pki.tools/aim.html as well AIM Supports : * None Ssl Mails * Implicit Ssl Mails * Explicit Ssl Mails * Smtp Connection test * Detect Ssl type of mail server * Attachments for MIME and S/MIME message. * In-line attachment and separate file attachment * All content types and mimes * SMIME , Signed and Encrypted mails In an integrated way Sadly, Microsoft.Net.Mail Ssl Mails does not support Implicit Ssl Mail and it is still used by many servers, including port 465 of Gmail here AIM comes to make a readable and fast alternative to send your smtp mails. For unicode issues please refer to https://sourceforge.net/p/netimplicitssl/tickets/4/ . We really appriciate any help in testing of different encodings
    Downloads: 0 This Week
    Last Update:
    See Project
  • Keep company data safe with Chrome Enterprise Icon
    Keep company data safe with Chrome Enterprise

    Protect your business with AI policies and data loss prevention in the browser

    Make AI work your way with Chrome Enterprise. Block unapproved sites and set custom data controls that align with your company's policies.
    Download Chrome
  • 5
    Concisus is a collaborative environment (a groupware) based on the idea of separating application from information. Concisus is a eGroupware branch to provides a framework to manipulate informations and their relations using a web-based interface.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    Helps passing of relevant arguments to Mozilla (Gecko) based applications from a simple, descriptive GUI. Can save these 'Launchlets' to system tray, Start Menu, or Desktop. Simplifies managing multiple profiles, testing extensions, and troubleshooting
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    HP QuickPrint
    A Windows application to quickly send a document to a HP ePrint printer with a click of the mouse. After you've saved your information, just drag a file onto the window, and click Send to print the document.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    Jack Mail Client: jackmailclient: Mail Client in Java This is a simple mail client uses any mail server with a minimal configuration you will have a robost email client. Purely written in java.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    An IMAP4 Mail Client based on LumiSoft Mail Server API. The client support online, offline and disconnected mode. The client make it possible to manage rules for filtering mail. Mail are moved in new folders based on the rules.
    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
    Outlook Macro: Moving and reading mails

    Outlook Macro: Moving and reading mails

    Outlook Macro for moving specific mails and reading their content

    What does this macro do? (Step by step) - Find the mails which have the specific subject in Inbox folder (In this case, subject is "New resume has been received!") - Creating a folder named like "Resumes 8/26/2012 1:29:50 PM" under Inbox. - Moving those mails to "Inbox > Resumes 8/26/2012 1:29:50 PM" - Creating a folder named like "Resumes 8/26/2012 1:29:50 PM" under C: drive - Saving those mails' attachments under "C:\Resumes 8/26/2012 1:29:50 PM" - Reading content of those mails and creating Excel file Notes: - A reference named "Microsoft Excel 14.0 Object Library" must be added - It searchs mails under only Inbox folder
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Phasault is a EMail Tool-Client, which provides some features you can't see in other E-mail Clients. Coded in Python using Tk as GUI. Works in Win32 and Unix/Linux (with python interpreter installed), and also planning to create stand-alone distribution o
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    Browsing your mail on mail server, And deleting mails without downloading.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    A C library with support for logging, configuration, networking, message specification, semaphores, message queues, SSL, timing, epoll and email functionality.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    SPAM Gatekeeper will be your weapon in the fight against SPAM. Use the Gatekeeper as a mail client or as a general filter between your mail client and the mail server and enjoy the easy-to-use user interface.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    Shell project for a better shell on UNIX like systems Improved.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Spicebird is an open-source email and collaboration suite based on the Mozilla platform. It provides integrated e-mail, contacts, calendaring and instant messaging. It can connect to any SMTP/IMAP email server, CalDav Calendar server and Jabber serve
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    ECHO This batch file uses the command line capabilites of The Bat! and starts an eml-file export of all accounts complete with subfolders and embedded attachments. ECHO Tested with The Bat! 3.8 and 4.0 on Win XP.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    data & video-conferencing, one shared whiteboard, send text messages (IM), transfer files(FTP),collaborate in real time,email capablities,Plays and stores dvd,cd and Mp3. Web-based Internet directory,Remote Desktop Share,File sharing program & browser
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Public Computing Services strives to provide essential information management to families that can't afford commercial software. Browser-based applications help users manage health, communications, education, legal, financial, home and employment data.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    WapReader is WAP-based PHP email client. It use IMAP/POP3 protocols to connect to mail server.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    A webmail system for a dbmail enabled mail-server.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    quickmail.php is a script that reads email from a mail server and outputs it in RSS format that can be displayed in a browser (as XML, using included XSL/CSS) or RSS aggregator or as WML for use on WAP devices (mobile phones/PDAs).
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • Next