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

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  • 1
    K-9 Mail

    K-9 Mail

    Open Source Email App for Android

    K-9 Mail is an advanced, open-source email client for Android that's focused on making it easy to chew through large volumes of email. It's designed to be easy to use by both novice and power users, with plenty of useful features. It has IMAP push email support, support for multiple accounts, support for POP3 and Exchange 2003/2007 (with WebDAV), flagging, filing, signatures and more! K-9 Mail also offers a light and dark theme, keyboard shortcuts and emoji support. Like man's best friend, K-9 Mail is an email client you can depend on, and will surely be your best friend when it comes to handling your emails!
    Downloads: 10 This Week
    Last Update:
    See Project
  • 2
    With Tiger Envelopes you can stop snoops from reading your email. Same email client. No extra steps. One click to install on Windows and Linux. Configures Outlook, Thunderbird, and KMail. Supports GPG, PGP, Bouncy Castle encryption.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 3
    Columba
    Columba is an email client written in Java, featuring a user-friendly graphical interface with wizards and internalionalization support. Its a powerful mail management tool with features to enhance your productivity and communication.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 4
    EmailTray
    Emailtray is a tray icon software that monitorize and notify emails on Yahoo, AOL and Gmail accounts free and apps. Work without email client software because it use web interface.
    Downloads: 3 This Week
    Last Update:
    See Project
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  • 5
    Mobile Mail Checker is a mail client for portable devices: java phones/smartphones/PDAs. It is based on J2ME. The most important features are: POP3/IMAP/SMTP support, reading/writing/replying/forwarding mails, SSL support, multimedia attachments supported
    Downloads: 2 This Week
    Last Update:
    See Project
  • 6
    jwma (java webmail app) uses jakarta mail (formerly javamail) to provide access to an imap email store. Multiple users can authenticate, read, send and manipulate email storage and persist a list of contacts, email identities and their own individual preferences. It works with email stored in mbox or maildir format or stored in a derby database; it has been tested with dovecot.james and exim4. See http://jwma.sourceforge.net/ for further details.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 7
    OpenJean is a cross-platform, extensible, personal information manager. It includes: file manager, RSS aggregator, calendar and appointments diary, mailer, image manager, multimedia manager, favorites, notes, tasks, anniversaries, topics and address book
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    DKIM for JavaMail is a small JAR that can be easily implemented in existing Java projects using JavaMail for sending DKIM signed emails.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    JMail is a mail client written in Java. It handles attached files, HTML mails, filters and other stuff... It can be used with a LDAP directory.
    Downloads: 1 This Week
    Last Update:
    See Project
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  • 10
    Mailbox Sweeper is a program to connect to a mailbox, preview and delete selected messages. Useful for cleaning up mailboxes without downloading all the mails to your computer, e.g. for dialup users who do not want to download that 5MB attachment.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 11
    The project was moved to http://mujmail.xf.cz/index.php !! an E-mail client for mobile devices supporting J2ME.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    This is a Java Email client for academic purpose. It will include the general email client features and other experimental techniques such as uncertain reasoning, HCI principles. This project is not supported now.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    A GUI-based email application capable of recording, compressing and sending voice messages.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Email2Fax and Fax2Email gateway for Asterisk, that could be integrated to your own existing Asterisk.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    CIMAP is a pared-down IMAP client for Java ME-enabled cell phones (MIDP 2.0/CLDC 1.1), intended mainly to complement the use of IMAP for implementing the GTD (Getting Things Done) personal management methodology.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    I often encountered an inability among users to think beyond SAP and MS. Goal of the project is to create a web based application management platform, which enables organisations to easily manage applications within the system.
    Downloads: 0 This Week
    Last Update:
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  • 17
    CentraView - Browser based Enterprise Java (J2EE) Contact Management, Groupware, Collaboration, CRM, SFA, Project Management software. Run locally or as a hosted service. Built on Apache Tomcat, JBoss, MySQL, Linux (Fedora, RedHat and others) & Windows
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    This application is an email ( POP3/SMTP ) application built with eclipse 3.1.1. It shows the power of eclipse to build RCP apps. It is using the embedded version of Derby as the DBMS
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    CPO is a tool written in Java that manages newsletters. It's focused on corporate needs (privacy, scalability, bounce count, opt-in & out, newsletter statistics).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Daffodil Organizer is an e-mail client with the facility to import mails from the Microsoft Outlook's .pst files. In Daffodil Organizer mails are stored in RDBMS that provides maximum flexibility to organize your mails. You can also categorise your mail
    Downloads: 0 This Week
    Last Update:
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  • 21
    Deinonychus is an email client written in Java featuring a GUI built with SWT. Supports MIME, Hotmail access, IMAP access, POP access, and SMTP.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    A web mail service based on J2EE and open source sql database. It supported rules, addressbook, etc..
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Eclipsemail is an e-mail client for the Eclipse platform. The original Eclipse Mail project on SourceForge was founded by Jordi Boehme Lopez and Leif Frenzel. That project is no longer maintained. Please visit http://eclipsemail.org instead.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Special email client that works with multiple accounts. Main function - check for number of emails changed from last time, and delete selected emails. Using JavaMail for operation. Requires Java 6 to run.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Encki Mail is a web based e-mail system that focusses on ease of use for both the user and the system administrator. The project is being developed for Linux using the popular PHP + MySQL combination.
    Downloads: 0 This Week
    Last Update:
    See Project
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