Knowledge Base

  1. Home
  2. Support
  3. Knowledge Base

Search the Knowledge Base

(e.g. "backscatter", "image spam")

Featured Articles

Read

ORF 6.1.1 Change Log

2 months ago — applies to ORF 6.1.1
The complete list of changes implemented in ORF 6.1.1 compared to the previous 6.1 release.
Read

Known Issues

1 month ago — applies to ORF 6.1.1
This article contains the complete list of known issues with the latest ORF 6.1.1 version.
Read

Exchange 2013 Service Pack 1 compatibility requirements

6 months ago — applies to ORF 6.1.1 / ORF 6.1 / and 7 other product versions
Microsoft® Exchange 2013 Service Pack 1 shipped with a defect that needs fixed before ORF can be used with SP1. This article describes how to fix the defect.
Read

What are the system requirements of ORF?

6 months ago — applies to ORF 6.1
ORF requires the following minimal configuration.
Read

Is Exchange 2019 supported by ORF?

6 months ago — applies to ORF 6.0
Yes, Microsoft® Exchange 2019 is fully supported by ORF.
Read

Recommended DNSBLs, SURBLs and External Agents

6 months ago
The following article lists the recommended DNS Blacklist, SURBLs, and External Agents Vamsoft recommends. Enabling these will ensure high spam catch rate while keeping the false positive rate at a minimum.
Read

"SERVFAIL, RCODE 2" DNS lookup error logged for certain SURBL tests

6 months ago
You may receive this error message if obsolete SURBLs are enabled on the SURBL Test page.
Read

How do I configure ORF to move spam into the users' Junk E-mail folder?

2 months ago
Instructions for tagging and redirecting blacklisted emails to the Junk E-mail folder in various versions of Exchange.
Read

Is there a best practices document for ORF?

6 months ago
Yes, it is called the Best Practices Guide. We also recommend reading the ORF 101 Guide, which covers the basics of ORF.

Popular Articles

Read

How to redirect blacklisted emails to the Junk folder (Exchange 2016/2019)

2 months ago
The following article provides step-by-step instructions to redirect all emails blacklisted by ORF to the recipients' Junk folder instead of rejecting them. This could be useful if your users wish to review blacklisted emails to make sure no legitimate email has been blocked.
Read

ORF Issue History

2 months ago
This page describes the issues we had in older ORF releases. The latest version is shipped with fixes for all the bugs below (see all current known issues with the latest ORF version in this KB article).
Read

ORF 6.1 Change Log

2 months ago — applies to ORF 6.1
The complete list of changes implemented in ORF 6.1 compared to the previous 6.0.1 release.
hnp1 | hnp2