Axigen X5 (10.5.0) Release Notes


  • Remove Cyren support. New license required for currently active Cyren customers.
  • Add Bitdefender In-Product Support (AXI-4780)
  • Mailbox API (REST): Add support for Undo send (AXI-4682)
  • Mailbox API (REST): Add support for Scheduled send (AXI-4689)
  • Mailbox API (REST): Add UI settings endpoint for API clients (AXI-4788)
  • Mailbox API (REST): Remove support for copying folders (AXI-4463)
  • Mailbox API (REST): Introduce support for consuming emails with complex MIME structures (AXI-4566)
  • Fix MIME parsing - unrecognized mpeg subtype variant (AXI-4804)
  • Fix MIME parsing - disposition type identification in specific scenario (AXI-4771)
  • Update folder failed when first character was UTF-8 (AXI-4523)
  • WebMail service: Fix invalid request was causing subsequent request to fail (AXI-4427)
  • Fix a number of memory leaks (AXI-4384, AXI-4853)
  • Introduce Search Index upgrade when upgrading from and newer (AXI-4828)
  • CLI: Add a new CLI debug command to show the loaded users and job statistics (AXI-4713)
  • CLI: Introduce configurable indexing auto rescheduling time for Sort and Search indices (AXI-4873)
  • Remove a no longer used internal filter (AXI-4883)
  • External libraries updates



  • Add support for Undo send (AXI-4682)
  • Add support for Scheduled send (AXI-4689)
  • Add read / unread as a search criterion (AXI-3454)
  • Properly render emails with complex MIME structures (AXI-4566)
  • Branding: Properly resize custom logos in the login page (AXI-4406)



Supported Versions

In accordance with our End-User License Agreement (EULA), we usually provide full support for the two latest major versions.

Nevertheless, due to the early release of Axigen X5, which was intended to replace Cyren with Bitdefender and maintain uninterrupted AntiVirus and AntiSpam services, we are making an exception: until Axigen X6 is launched, we will be extending support to the three most recent major versions: Axigen 10.5.x, Axigen 10.4.x, and Axigen 10.3.x.

Important Upgrade Information

If you are upgrading from X3 or older, the sort and search indexes will be migrated to the new version. In addition, a new conversation index will be computed and built. Depending on your storage size, these jobs are expected to last a few hours and will require a storage capacity increase of up to 10%. WebMail and IMAP user access is conditioned by the sort indexes, while the conversation indexes are only used by the WebMail. Until they are created, users will be able to use the WebMail in mail view.

If you use Cyren or have manually upgraded to Bitdefender before X5, please note that after upgrading to X5, a new license will be required to activate Bitdefender. The new license will be emailed directly to the license holder.

The upgrade process for X5 differs based on the presence of an active Cyren service and / or manual Bitdefender upgrade. Here you can find instructions on how to upgrade to Axigen X5.