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.
An unofficial web console to administer Apache James 3 server
MOVED TO: https://github.com/fulvio999/jamesui
Jamesui is an unofficial web interface to manage and monitor Apache James 3 mail server.
It is written in Java and run inside Apache Tomcat.
md2smtp monitors Linux maildirs using the kernel inotify mechanism and delivers (pushes) newly arriving mail via SMTP to a destination mail server using verified SSL endpoints. Specially designed to support DynDNS environments.
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.
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Welcome to the project page of the Open JMail Server - a scalable Java email server. Features POP, SMTP, IMAP, dynamic pluggable storage design, modular protocol handling, easy XML configuration and much more.