We are happy to announce the public preview of the latest and best ORF version. ORF 6 has arrived with the goal of greatly improving ORF's email filtering capabilities and fixing some of its long-overdue shortcomings. The added functionalities should help restore trust in email communications and provide users a greater sense of security.

Read on to learn what's changed and get the new beta.

What's New?


The new version supports using the DomainKeys Identified Mail (DKIM) email authentication framework for verifying the integrity of incoming emails as well as the identity of responsible senders via cryptographic signatures.


Domain-based Message Authentication, Reporting & Conformance (DMARC), possibly the most advanced email validation system designed to combat phishing and email spoofing, is now here to help you detect and mitigate fraudulent messages.

Per-Test Actions

Separate filtering actions can now be specified for almost every blacklist test.

Attachment Filter Exceptions

Allows excluding specific senders from Attachment Filtering by the sender email address or the source IP address.

DKIM Test added to Whitelist Test Exceptions

Provides an opportunity to verify the authenticity of the incoming email before the Auto Sender Whitelist or Sender Whitelist could exempt the message from filtering (disabled by default).

Microsoft® Exchange 2019 compatibility

Exchange 2019 is now fully supported by ORF.

Microsoft® Windows Server 2019 compatibility

ORF is now officially supported on Windows Server 2019.

General User Interface Improvements

  • Status indicator added to tests in the side-menu
  • Toggle option added to the toolbars
  • Status bar elements are now interactive
  • Some of the icons received a second state

Log Viewer Log File Handling Improvements

  • Drag-and-drop support added
  • You can now select multiple log files and load them at once
  • Loading specific log files is now possible in multi-server mode as well

Attachment Blacklist Logging Improved

Filter expressions are now appended to log messages automatically when no user-defined comment text is configured.


Be sure to read the Installation Notes before installing the beta version.

ORF Fusion

for Microsoft® Exchange and IIS SMTP Service
version 6.0 BETA R05
released on Fabruary 20, 2019
expires on March 31, 2019
size 9.37MB
Download System requirements

ORF Fusion for SBS

for Microsoft® Windows Small Business Server
version 6.0 BETA R05
released on Fabruary 20, 2019
expires on March 31, 2019
size 9.38MB
Download System requirements

A separate download of the ORF management tools is available below. Install this package on workstations to manage ORF remotely. Note that management tools are included in the full installer packages above (for local management).

ORF 6.0 Beta R05 Management Tools-only Installer
orf-6.0-mgmt-tools-beta-r5.exe / 7.51MB / Fabruary 20, 2019

The management package can be used with both ORF Fusion and with Fusion for SBS.

The 6.0 Management Tools are not backward compatible. You can only manage ORF 6.0 installations with the 6.0 Management Tools package. Side-by-side installation of 5.x or 6.x Management Tools is currently not available.

Installation Notes

Please consider that ORF 6.0 Beta is pre-release software and may contain bugs. Install the beta for testing purposes only.


When upgrading from an existing ORF installation, make sure to create a configuration backup prior the upgrade, as described by the Configuration Backup Guide. If you need to revert back to the previous version, this backup can be used to restore your previous version quickly.

Important Exit from the Windows Event Viewer MMC before the upgrade (see this FAQ article).

Known Issues

The list below contains the issues that we know about the current beta release. This list is maintained during the lifetime of the beta; be sure to check back here before reporting an issue. Issue severity levels are explained in the FAQ.

Severity Issue

Some website links may not work

A few links pointing to our website from ORF and its help system will not be available until the final release of ORF 6.0.

ORF Beta Issue History

The list below contains the issues that have been fixed since the R01 beta release.


A dedicated support forum is available for the beta version. Please use this forum for technical support and bug reports. Registration is not required.

Go to forum ⇾

Reporting bugs

When reporting bugs, please share any information with us that you consider important for reproducing the bug. A few tips on what we might need:

When sensitive information (such as logs) needs to be shared, please send these to cs@vamsoft.com.

You can report issues of all severity, even the smallest things like typos or grammatical errors.


What are the limitations of the beta version?

The beta release is fully functional and contains all planned features. It is also time-limited and the current release will expire on March 31, 2019. We will release either the final version or another beta release before the above date.

What do the different issue severity levels mean?

We define four simple levels for issue severity.

Cosmetic issues are harmless and do not affect any functionality. These are typically typos, grammar mistakes and other interface issues.

Minor issues render some functionality of ORF broken, but they are generally harmless and do not affect the overall operation of the product.

Medium severity issues cause an important ORF functionality to be broken. If you rely on the affected functionality, you may not be able to use the beta until a fix is released.

Major issues affect the overall reliability of the software. If such issue is published, you are recommended to stop using the beta until a fix is released. Make sure to read the description to understand the risks.

Unknown severity is assigned to issues where the scope of the issue has not been determined yet.

Setup says "DeleteFile failed; code 5.", how do I fix this?

You may receive "DeleteFile failed; code 5. Access denied." error from the Setup regarding orfeesvc.exe when updating an existing ORF installation.

This is caused by a program that locks the Windows Event Log message resource embedded in the ORF Service binary orfeesvc.exe. The typical offenders are the Windows Event Viewer MMC and software that uses WMI (Windows Management Instrumentation) for reading the Windows event log.

To fix this problem, exit from the Event Viewer MMC and click "Retry". If the file is still locked, shut down any software temporarily which monitors the Windows event log and try again.

If the above does not help, go to the ORF installation directory and rename orfeesvc.exe to orfeesvc.bak, then click "Retry".

What is the difference between Fusion and Fusion for SBS?

Both products offer the same features and services. However, Fusion for SBS will run on Windows Small Business Server only, while Fusion supports all platforms.

Can you add Feature X?

We are happy to hear your suggestions and they may make it into a future ORF version.

What are the system requirements of ORF 6.0?

The system requirements have changed since ORF 5.5.1. Microsoft® Windows Server 2003 and Microsoft® Exchange Server 2000-2003 are no longer supported.

The Management Tools package can be installed on any modern Windows desktop OS (Windows XP or later).

Just how stable is the beta?

Early ORF releases were tested in-house by Vamsoft developers for weeks on various platforms. Due to this, we expect that most issues that may arise will be lightweight.

Be sure to visit the beta forums every once in a while, we will publish any bug reports there. You can also subscribe to the RSS feed of the beta forum.

Can I upgrade to the new beta from ORF X.X?

Yes, the beta setup is fully backward compatible and will update any earlier ORF Fusion or Enterprise Edition release.

Will I be able to upgrade to the final version from the beta?

Yes, you will be able to upgrade from the beta in-place.

How do I revert to ORF X.X?

You can revert by uninstalling ORF 6.0 Beta and installing a previous ORF version. Once the installation is complete, restore the configuration backup you made previously (see the Configuration Backup Guide).

When is the final version expected?

It depends on the beta test progress. We are committed to release a stable ORF 6.0 to our clients, so the final release can be expected only once the preview release reaches a reasonable level of reliability.

Will I get ORF 6.0 free of charge upon its final release?

Your Software Maintenance Agreement guarantees access to any new ORF releases within the validity period — this includes ORF 6.0. Be sure not to let your SMA expire and you will get the new ORF at no additional cost.

Where do I get more information?

Contact our Customer Service, we are happy to answer any questions you may have.