JavaMail Reference Implementation

Third-Party Products

(Last updated Oct 16, 2017)

Links to third-party products related to the JavaMail APIs. Send us a note at if you want your product listed here.

  • Sending emails in Java should be easier. Jodd provides some nice classes for sending emails in an easier, practical way. Jodd Email is available at

  • simple-java-mail is a very simple Java mailing API for sending simple to complex emails. It’s a wrapper for the JavaMail smtp support. simple-java-mail is available at

  • exJello is a JavaMail provider that connects to a Microsoft Exchange server (actually, it uses the WebDAV interface exposed by Outlook Web Access). It is designed as a drop-in replacement for the standard POP3 and SMTP providers. This allows you to send and receive messages through your Exchange server in situations where a POP3/SMTP interface is not available (through a restrictive firewall, for example, or if your administrator simply does not provide a POP3 or SMTP gateway). Available at:

  • mailxel is a personal mail store and mail client with focus on management and organization of high volume mail boxes. Like gmail, but private. The main features are: fast search, tagging, GTD inbox management workflow, efficient data storage, address management, automated server-side mail folder organization, normal mail functionality (send, recieve, forward etc etc). Available at:

  • libpst - A Java library to read Microsoft proprietary PST files. Available at:

  • Apache POI - the Java API for Microsoft Documents. The Apache POI Project’s mission is to create and maintain Java APIs for manipulating various file formats based upon the Office Open XML standards (OOXML) and Microsoft’s OLE 2 Compound Document format (OLE2). In short, you can read and write MS Excel files using Java. In addition, you can read and write MS Word and MS PowerPoint files using Java. The project has recently added support for Outlook (HSMF), which allows reading Outlook MSG files. At this time, it provides simple read access to some of the textual content of MSG files. Available at:

  • Cubusmail is a Ajax based IMAP mail client which has a desktop application like user interface. It provides functions like MIME support, address book, folder manipulation, drag & drop and message searching. Available at:

  • DKIM for JavaMail is an open source library that allows you to sign a message with DomainKeys Identified Mail (DKIM). Available at:

  • j-XChange is a pure Java implementation of the entire Collaboration Data Objects (CDO 1.21) library for accessing Microsoft Exchange Servers in a platform independent manner. Available at:

  • Jack Mail Client is a simple mail client that uses any mail server with minimal configuration. Jack Mail Client is written in pure Java and is available under the GPL license at:

  • GreenMail is an embeddable, lightweight and sandboxed email server for testing and developing purposes. Available at:

  • Aspirin is an embeddable send-only SMTP server that reuses parts of the Apache James mail server. Available at:

  • JEC provides a pure Java API to access Microsoft Exchange Server. With it you can access and manipulate emails, calendar, contacts, and tasks in the Exchange server. It supports 2 types of licenses - 1) Non-Profits, Academic Institutions, and Private Individuals, and 2) commercial. For more information see:

  • yawebmail is a webmail-client written in Java as a webapp. It supports SMTP (including SMTP-Authentication), POP3 and IMAP. Just put the yawebmail.war file into the deployment-directory of your Servlet-container (tomcat, jetty, weblogic, ..) and you’re ready to go! Take a test ride on the yawebmail-Homepage!

  • Aperture is a Java framework for extracting and querying full-text content and metadata from various information systems (e.g. file systems, web sites, mail boxes) and the file formats (e.g. documents, images) occurring in these systems. It provides a JavaMail-based incremental IMAP crawler. Available at:

  • JCharset - a charset provider that handles UTF-7, which is a mail safe version of Unicode (RFC 2152), and some other charsets that aren’t currently supported by Java. This package is open source (GNU), and it would probably help many JavaMail fans out there. Available at:

  • The jmbox project (read jambox) enables developers to use the JavaMail API to manage mail stored in local repositories like Outlook Express, Mozilla, Netscape, etc. A JavaMail enabled application needs only to include the jmbox distribution jar in its classpath to automatically benefit from local mail management, the same way it would do with POP3 or IMAP remote mail. At the moment jmbox supports navigation and reading from Outlook Express 5/6 mail (dbx format). Writing into folders and support for other repositories (mbox) will be added. Available at:

  • hipergate has a WebMail client and local store provider based on JavaMail. hipergate stores e-mail messages in the local filesytem of a web server, indexes them using a relational database and makes them available through a web interface. JavaMail is tightly integrated with the hipergate Contact Manager and can keep track of any sent or received messages for each contact listed in the agenda. Available at: and

  • jASEN is a pure Java Anti Spam ENgine combining bayesian-like scanning with intelligent email inspection and classification. jASEN is best suited to developers wishing to integrate anti-spam services into an existing server based Java email application, but can be used for client applications. Available at:

  • SplashMail is a simple, free, source-available web application for accessing your email over the web. It may be simple, but it provides all the common features most users need. Available at:

  • mstor is a local store provider for JavaMail. Based on the mbox format, mstor facilitates the storage and retrieval of email messages in the local filesystem. In addition, mstor supports additional metadata not inherently supported by the mbox format, and is designed to handle large mailboxes without a significant degradation in performance. Available at:

  • IAIK-CMS with S/MIMEv3 provides a complete implementation of the CMS, S/MIMEv3 and ESS (Enhanced Security Services for S/MIME) protocols. It can be used for signing, encrypting, digesting, authenticating any kind of digital data and enhances the JavaMail API with the cryptographic services of the S/MIME and ESS standards. It comes with a great variety of cryptographic algorithms, supports data compression according to S/MIMEv3.1, and allows easy integration of smartcards or other hardware security modules. Please see

  • JavaMail-Crypto is a simple, easy-to-use API that provides a unified way to access OpenPGP and S/MIME encryption functionality with JavaMail. It is released under the LGPL, and available at

  • Mousetrap Mail is a free email client written in Java. Available at:

  • PGPMime for Java: A JavaMail extension allowing encryption and signing using the PGP/MIME standard. Available at:

  • JTNEF: A Java TNEF package for processing TNEF streams (WINMAIL.DAT attachments) in email messages sent by Outlook and Exchange. Available at:

  • JavaMaildir is a local Store provider for the JavaMail API that provides access to qmail-style Maildir folders with some extensions. Available at:

  • Ebitec’s JMS Mail bridge is a software product that interfaces between traditional e-mail protocols (SMTP, POP) and a JMS server. The Ebitec Mail Bridge is independent of JMS server vendor and therefore easily integrated into your existing systems. Advanced features are included such as processing different types of e-mail with multiple attachments, encode e-mail into XML, and support for both queues and topics. Search for it at:

  • JDAVMail is a JavaMail service provider allowing JavaMail-compliant clients to access HotMail mailboxes (read/delete/move/copy mail, create/rename/delete folders, …). JDAVMail implements the WebDAV-like protocol used by some HotMail clients. The package is published under the LGPL license and is available at

  • email client demo program from The Java Cookbook. Source code is available for download at:

  • jwma is a WebMail implementation in Java, depending on an IMAP server as post office, and an SMTP server for mail transport. jwma is an open source project.

  • PlexMailer offers a set of powerful tools to prevent against unsolicted emails (SPAM). It supports POP3, IMAP, and MBOX protocols and can be run as an email client or as a proxy server between a mail server and another email client. PlexMailer comes with dozens of filters and hooks to other online resources such as ORBS, MAPS, and DUL to protect against unsolicited emails and report senders of those emails to appropriate authorities. It supports Java Web Start for seamless installation and automatic upgrades for future enhancements and bug fixes. Available at:

  • Pooka: An email client using JavaMail and Swing. Supports IMAP (including disconnected IMAP and IMAP over SSL), POP3, and local mbox stores. Source is available under the GNU GPL. Available at:

  • A sample application using the Devsphere Mapping Framework: A servlet called FormMailer converts data collected with HTML forms to objects and then to key-value pairs. The obtained ASCII text is mailed to one or more addresses using JavaMail. A standalone application called MailMonitor uses JavaMail to get the messages from the mail server. Then, it converts the obtained key-value pairs to objects, which are forwarded to a dynamically loaded class for processing. The application is described in Chapters 12-17 of the Developer’s Guide, available at An evaluation copy of the Devsphere Mapping Framework is available at

  • Saké Mail: A web-based mail client implemented as a Java servlet using JavaMail. Available at:

  • Apache JAMES: The Java Apache Mail Enterprise Server (a.k.a. Apache James) is a 100% pure Java server designed to be a complete and portable enterprise mail engine solution based on currently available open protocols (SMTP, POP3, IMAP, HTTP). Available at:

  • Apache JetSpeed: An Open Source GroupWare/Portal product similar to Lotus Notes or Microsoft Exchange that implements portal features such as My Netscape and My Yahoo. Available at:

  • An MH provider, from the folks who bring you ICEMail. Available at: