Sun Java System Messaging Server

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The Sun Java Messaging Server is Sun’s highly scalable and robust messaging (e-mail) server software.

Sun’s Messaging Server could potentially be the most widely deployed commercial e-mail server on the planet, with claims of 150 million mailboxes deployed world-wide (mostly by ISPs, Telcos, Universities, government and cable TV broadband providers) -- Source David Ferris Newsletter.

Sun’s Java Messaging Server has a long history, drawing technology from Sun Internet Mail Server (SIMS), Netscape Messaging Server (NMS), and Innosoft’s PMDF. In addition to the Mail Server’s three parents, the software has undergone multiple brand naming changes: iPlanet Messaging Server, Sun ONE Messaging Server, and now the Sun Java System Messaging Server. The code base has been carried on throughout these minor brand changes with only feature enhancements and bug fixes.

Since 2003, the Messaging Server has been part of Sun’s Java Enterprise System bundle of Internet/Intranet server software. In 2006, the Messaging Server was also packaged as part of smaller bundle called the Sun Java Communication Suite. This suite of software products includes Sun Java Calendar Server, Sun Java Instant Messaging Server, and Sun Java Communications Express. Supporting server software fo the Messaging Server includes Sun Java Directory Server, Sun Java Access Manager, and Sun Java Web Server. The supporting software is included in the Communications Suite bundle with limited-use licence rights.

The Messaging Server is supported to run on multiple operating systems including Solaris, Red Hat Enterprise Linux, HP-UX, and Microsoft Windows.