Post.Office: New, Leopard-compatible mail server for Mac OS X

Simple, Secure, Powerful

Santa Barbara, CA, July 24, 2008. A new Post.Office 3.8.4, still simple, secure, and powerful, but with added modern features, is now available for Mac OS X 10.5. Post.Office, after more than a decade, continues to be a popular mail server that instills loyalty among users. Long-time Post.Office customers continue to transition to Mac OS X from a range of diverse platform.

Post.Office's built in web-managed SPAM filter engine has been updated to allow filters to be imported, exported, and disabled, giving Postmasters the ability to collectively fight SPAM by exchanging filters with colleagues. Added security to SMTP Authentication, ensures open relay protection while giving authorized users world-wide mail server access. In addition, Post.Office supports the addition of open-source plug-ins to complement and reinforce Post.Office's built-in filtering.

Post.Office's mail filtering plug-ins - SpamAssassin (a popular, open source spam detector) and ClamAV (an equally popular, open source, multi-threaded virus scanner) - have been updated. Both SpamAssassin and ClamAV are delivered pre-configured and integrated into Post.Office's web-managed SPAM filters. With this new version of Spam Assassin, filtering rules can be updated independent of SpamAssassin itself via sa-update. The ClamAV virus scanning database gets automatically updated biweekly.

A separate web-based mail client is also available as a Post.Office add-on. When Post.Office and WEBmail are used in conjunction with Tenon's iTools (an Apache, DNS, and FTP management tool), both products have additional capabilities. Graphical displays of Post.Office mail traffic patterns can be generated and the web-based mail client manifests a big performance boost by taking advantage of FastCGI with iTools Apache 2.2.

Post.Office, WEBmail and iTools run flawlessly on any Mac OS X 10.4 or 10.5 (client) machine, giving webmasters and postmasters an inexpensive way to start hosting their own sites. Because all of these products are extremely scalable, transitioning to an Xserve with Mac OS X Server when the traffic demands it is very doable.

Outside of Japan, Post.Office is now only available on Mac OS X. Post.Office users on non-Mac platforms are encouraged to call Tenon for analysis, support and system upgrades. Tenon can easily move mail and account information from any non-Mac Post.Office platform to a Mac OS X machine, giving long-term Post.Office customers access to a modern mail server, with the same comfortable, easy-to-administer web GUI, coupled with Tenon's highly-regarded technical support.

Post.Office is $349 for a 100 mailbox/ 10 list system, WEBmail is $275 for 100 users, and iTools is $349. Check the Tenon web site ( for details, special bundle offers and upgrade pricing.

About Tenon

Founded in 1989, Tenon Intersystems is a leader in high-performance networking. Tenon technology has provided the framework for world-class networking on the Macintosh for over a decade. Tenon is continuing that tradition on with world-class Apache administration. Tenon Intersystems can be reached in the U.S. at 805-963-6983, by the internet at, or via the web at

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