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jumfi will provide a java based uniform mail filter interface using C, JNI and Java. It will allow mail filters build in java to be applied to multiple mail servers of similar and different design.
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
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.
JavaEmailer is a Java Classes Library that allows Javadevelopers to easily integrate a mass mailer to their applications. JavaEmailer manages file attachments, SMTP servers, CCs, BCCs, plain text and/or html messages, and more...
Java Mail Forwarder.
This application listen to a Microsoft exchange server, checking if a new mail arrived, pushing the content to an specified Mail address.
It uses JavaMail API to connect to the server.
The MailRA resource adapter allows sending and asynchronously (non-polling) receiving of emails. It is coded according to the JCA 1.5 and Java EE 5 standards. The project is coded from scratch, without using source code from Sun.
RMDS, the Reisinger Mail Delivery System is a MTA Solution entirely written in Java.
SMTP/SMTP-Rleay/POP/IMAP Services are supported.
RMDS makes use of a solid rdbms based mailstorage technique.
Administration capabilities are wide spread.
The project is written in Java to redirect your old emails from the old email servers into your any new email servers. The most usage of this software is to redirect all your old emails into your gmail account.
The goal of this project is to develop a very simple SMTP server that responds to SMTP requests and makes received messages available for query at a later time. All useful features for a SMTP server that can be used in an automated testing suite.
SIMON is a very simple MTA and POP3 implementation. It is completely designed from the ground up and is useful for departmental or small to medium sized companies.
James-HA is a high availability distribution of Apache James. James-HA provides the capability of using multiple instances of Apache James against the same database backend for increased performance and automatic failover.
A Sender Policy Framework (SPF) Java API. Including DNS probe classes, SPF record evaluation and macro language expansion. This project sponsored by Mimecast Limited United Kingdom.
JXMail allows you to send email easily and cleanly from within a jsp, servlet, or any java class, without delving into the intricates of Java Mail. Supports multiple recipients, cc, bcc, file attachments and html formatted email.
JEM is an SMTP server with pluggable components that let you
process email in any way you like. It can also extend beyond
emails into generalised message processing (like JMS) and can
even generate its own messages based on a Cron-like facility.
JaMaRe (JaMaRe ain't a Mail Reader) has grown out of my own need for a hacker's mail filter. JaMaRe has it's own internal mail folder system, and a very extensible filtering system. JaMaRe can also be used as Mail Router.