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Collaboration Services Product Notification

Product Release

We are excited to announce a new version of Collaboration Services 3.9.1 is now available for download.

Look what's new:


  • Automatically clean up unused Mail profiles created by QCS. The cleanup process is triggered automatically when the number of your unused Mail profiles exceeds 10.
  • Added ability to synchronize the msRTCSIP-PrimaryUserAddress attribute when the User to Contact mapper is enabled.
  • Removed alert on group to contact converting when the namespace of the secondary SMTP address is not present.
  • Added ability to sort non-applied objects by Synchronized Object, Conflicting Address or Target Object DN.

Resolved issues:

  • Calendar Collector stopped working unexpectedly.
  • Cannot synchronize calendar when the value of legacyExchangeDN contains a tilde.
  • The synchronization of an AD user’s calendar got stuck due to an unspecified error (0x80004005).
  • Files installed by QCS showed an incorrect version number.
  • The error "Packet queue processing failed. Storage is corrupted" occurred while working with the management console.

PLEASE NOTE, upgrading to this version is strongly recommended if the customer uses Exchange 2013 or above versions. 


Real time RSS feeds for all products

Stay up to date on the latest knowledge base articles, hotfixes, software releases and more by subscribing to our new real time RSS feeds. For more information see knowledge base 316238.

Collaboration Services 3.7 is schedule to discontinue support on November 17, 2020. To determine the current support phase of your product, please refer to the Collaboration Services life cycle table.

If you need additional services to assist you with upgrading Collaboration Services or ensuring your solution is running optimally, please visit our Collaboration Services Services page

The Quest Software Support Renewals team can assist you with questions regarding your Support Maintenance contract or upgrading to another support offering and the Benefits of Renewing Support.

Be sure to check out the Collaboration Services Product Support page to find solution articles, tips and tricks, tutorials, documentation, notifications, and training.