Password Hint If you have not signed in recently, your password may be your Customer ID. Check your email archives for your Customer ID or reset your password.

The new ORF 5. Simply different.

or learn more

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.

In the first hour that ORF was installed, it blocked 30% of our mail legitimately. I monitored the log files and made sure that the messages it was blocking were actual spam and they were.

(anonymous comment)

The 30-day statistics below are generated from automated, anonimized reports received from ORF users worldwide.
Total emails filtered Spam rate
279,729,796 51.45%
More
  • ORF 5.5 is now available

    We are pleased to announce that ORF 5.5 is now available for download. The new release focuses on performance, usability and on request we've been receiving from all of you. We hope you will be pleased (…)
  • ORF 5.5 public preview

    We are happy to announce that the first public preview of ORF 5.5 has finally arrived. Get the beta from here.
  • ORF 5.4.1 RTM is now available

    The new version is a minor compatibility and bugfix release. See the Change Log for details.
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.
Google+