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The new ORF 5. Simply different.

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ORF is our award-winning spam filtering software for Microsoft® Exchange Server.

Layered protection

No single technology catches all spam. The 23 layers of tests in ORF ensures the maximum detection rates.

ORF ♥ administrator

From the industry's best logs to the friendly UI, ORF works for the administrator, saving time, resources and sanity.

No false positives

Never miss an important email again. ORF ships with multiple dedicated tools against false positives.

Proven performance

Deployed at 11,000 organizations in 112 countries, ORF filters thousands of emails every second, 24 hours a day.

We have been a customer now for over a year and the ORF program has given faith back into our email server. ORF was easy to install and even easier to perform upgrades. We noticed no performance hits on the email server after installation either! Best of all, the price of ORF is simply unbeatable compared to other competitors' solutions that costs hundreds if not thousands more! Keep up the great work and kudos for releasing such a fantastic program!

James Lee, Network Administrator, Oncotech Inc.

The 30-day statistics below are generated from automated, anonimized reports received from ORF users worldwide.
Total emails filtered Spam rate
743,732,680 67.88%
More
  • New Showshoe Spam External Agent

    In response to a recent snowshoe spam campaign reported by our US-based customers, we have released a new External Agent definition. For more information, please read our related blog post.
  • ORF 5.3 Released

    ORF 5.3 is now available for download. The latest version is fully compatible with Microsoft Exchange 2013 SP1 and can be deployed on Exchange 2013 Edge servers.
  • ORF 5.3 Public Preview

    The first preview release of ORF with support for Exchange 2013 SP1 Edge Transport is now available on our website.
Ready to experience ORF? Take the tour, try ORF now free for 42 days, or take the deep dive and buy a license.
We offer a 90 day, no questions asked money-back guarantee.
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