Cumulative Update 6 for Exchange Server 2016

Summary

Cumulative Update 6 for Microsoft Exchange Server 2016 was released on June 27, 2017. 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 June 27, 2017.

Issues that the cumulative update fixes

This cumulative update fixes the issues that are described in the following Microsoft Knowledge Base articles:

• KB4024658 The EAS web.config file is not updated on the CAFE server during a build-to-build upgrade

• KB4024654 POP/IMAP clients can't log on with NTLM when Alias and SamAccountName are different in Exchange Server 2016

• KB4024653 Active Monitoring probes fail when you use a new accepted domain as the default domain in Exchange Server 2016

• KB4024652 Repeated IMAP SEARCH BODY requests may not return newly delivered messages in Exchange Server

• KB4024651 The "MessageRetrievalMimeFormat" setting isn't honored for plain text-only email messages in IMAP in Exchange Server

• KB4024650 Emoji is displayed as question marks in iOS clients in an Exchange Server environment

• KB4024649 The Read or Unread flag isn't synchronized correctly after you turn off an ActiveSync device overnight in Exchange Server

• KB4024648 A new contact created in OWA may be merged into an existing contact on Exchange Server 2016

• KB4019534 Error when a mailbox name includes an umlaut in Exchange Server 2016 Cumulative Update 5

This update also includes new daylight saving time (DST) updates for Exchange Server 2016. For more information about DST, see Daylight Saving Time Help and Support Center.

More Information

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.

References

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