We would like to have Exchange Online customers (who would like to participate in a preview program) help us improve the public folder hierarchy synchronization process. The preview program is called Hierarchy-Read-Replica (HRR) Preview.
Before we tell you more details of the HRR Preview program, you may want to read about the current public folder hierarchy synchronization here and then return to this post again.
As you learned here, currently, the primary PF mailbox is the only source of hierarchy synchronization for all secondary PF mailboxes. This model can cause the following issues:
As a solution to this problem, we are going in with a more distributed approach to propagate hierarchy changes, using a set of hierarchy-healthy secondary mailboxes and excluding them from serving hierarchy to end-users (which will dedicate them to hierarchy propagation tasks). This design will distribute the load from a single master mailbox to multiple mailboxes, hence improving overall performance.
The benefit you get by participating in the preview program is:
To join, you must meet the following eligibility criteria:
Sounds interesting? You can send us your nomination by filling in this form, and we’ll contact you with further details.
Public Folder team
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