This article contains the complete list of changes implemented in ORF 6.4 compared to the previous 6.3 release.

Changes in version ORF 6.4

• NEW: Complete IPv6 Support
  The ORF Service and ORF Management Tools are now fully IPv6 capable. You can now connect to ORF instances via IPv6 interfaces and create IPv6- specific rules and policies for filtering.
• NEW: Sender identity verification before whitelist and exclude actions
  A sender validation option was added to the Sender Whitelist page and to each Sender Exceptions dialog. Enable it to prevent spammers from exploiting existing email address and domain expressions on said lists to bypass filtering.
• BUGFIX: Service outage preceded by access violation errors
  Receipt of specifically malformed emails could cause a buffer overflow in the memory space of ORF, resulting in service outage.
• Further minor bugfixes and performance improvements.