This update is no longer available. To fix the issues that are described in this article, install the latest Microsoft Exchange Server update from the following Microsoft Learn article:
Exchange Server build numbers and release dates
Microsoft provides download files only for N-2 versions for an Exchange Server cumulative update (CU), where "N" is the latest CU. The latest CU can be used to recover servers that are running Exchange Server. This includes servers that have a previous CU installed.
Cumulative Update 4 for Microsoft Exchange Server 2016 was released on December 13, 2016. Several nonsecurity issues are fixed in this cumulative update or a later cumulative update for Exchange Server 2016. This release includes support for Windows time zone updates released through October 2016.
Issues that the cumulative update fixes
This cumulative update fixes the issues that are described in the following Microsoft Knowledge Base articles:
KB 3202691 Public folders indexing doesn't work correctly after you apply latest cumulative updates for Exchange Server
KB 3201358 Set-Mailbox and New-Mailbox cmdlets prevent the use of the -Office parameter in Exchange Server 2016
KB 3202998 FIX: MSExchangeOWAAppPool application pool consumes memory when it recycles and is marked as unresponsive by Health Manager
KB 3208840 Messages for the health mailboxes are stuck in queue on Exchange Server 2016
KB 3186620 Mailbox search from Exchange Management Shell fails with invalid sort value in Exchange Server 2016
KB 3199353 You can't select the receive connector role when you create a new receive connector in Exchange Server 2016
KB 3201350 IMAP "unread" read notifications aren’t suppressed in Exchange Server 2016
KB 3209036 FIX: "Logs will not be generated until the problem is corrected" is logged in an Exchange Server 2016 environment
KB 3212580 Editing virtual directory URLs by using EAC clears all forms of authentication in Exchange Server 2016
For more information about the deployment of Exchange Server 2016, see Release notes for Exchange 2016.
For more information about the coexistence of Exchange Server 2016 and earlier versions of Exchange Server in the same environment, see Exchange 2016 system requirements.
For more information about other Exchange updates, see Exchange Server updates: Build numbers and release dates.
Learn about the terminology that Microsoft uses to describe software updates.