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!
Hedwig is an open source IMAP, SMTP, POP3 server written in Java, designed with ease of installation and configuration in mind. Hedwig enables storage of mail message headers in a relational database(MySQL or Oracle) and mail messages in a file system.
Visit http://hwmail.sourceforge.net/ for more information.
Lotus Notes e-mail (or any other document) notifier. Agent notifying about new emails through XMMP (used by Jabber IM service) protocol. Open architecture allows to write your own plugins supporting other types of communication channels.
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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
JMailChecker is a Java/Swing-based desktop-application for monitoring email-accounts using pop3 or imap. Inspired by the "Magic Mail Monitor" but written in Java to be used under Linux or Mac OS as well.
HyperPool is a 100% pure Java project for network services management. TCP (HTTP/1.1, HTTPS, FTP, SMTP, POP3), UDP and SOCKS5 protocols support. Configurations: proxy, web server, mail server, download manager, port mapping.
Mailster is a project aimed at testing software mail capabilities. It provides a mail server container to test emails sent by your apps without rewriting your application code.
JXchange is an mail server multiplataform, written in Java language, like MS-Exchange. This project includes SMTP server, POP3 server, IMAP server, web management interface and webmail designed to run in almost all OS.
Purpose of this project is create games/other software for Java enabled mobile phones. Programs are written under Java (J2ME, midlets). Current highlights include simple mail client and web browser.
Jpxx is a lightweight ESMTP/POP3 java mail server. After v0.03, JMS can be run with a separate servlet engine (or application server) such as Apache Tomcat or Resin. It is used to run as a plugin.
MailMessager is a customizable utility that sits on the Windows or KDE3 system tray and polls email accounts for new email messages. SSL/non-SSL IMAP, POP3, and Atom feed (Gmail) protocols supported. A notification is displayed upon receiving new email.
Your own mailing system (most easiest to use with zero configuration) for the entire world (available in almost all the languages of the world) which will include Mail User Agent and Mail Transfer Agent thus trying to give maximum speed while transferrin
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
My Mail System is a complete email solution that will include an SMTP and POP3 server and a graphical email client. The system will be implemented completely in Java.
Virtual Qmail - virtual domains management system for qmail. It is designed to be fast, reliable, and easy to use. Includes software allowing users to manage their accounts via WWW.
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.
Vaza-Mail Server is open source mail server which provides SMTP and POP3 server implemented in 100% Pure Java. It is a pure Java Implementation using J2EE.