Download Microsoft Exchange Server 2019 CU2

Microsoft’s Exchange Server offers functionality to provide e-mail and calendaring, and is mainly used in business. Although Microsoft is strongly committed to cloud technology with Office 365, on-premise versions are also still being released. For a general discussion about Exchange Server 2019, you can visit the General Exchange 2019 topic on our Forum. The Exchange team has released the second Cumulative Update for Exchange Server 2019. The corresponding KB article with number 4488401 mentions the following changes:

Cumulative Update 2 for Exchange Server 2019

This cumulative update is a security update. It includes fixes for nonsecurity issues and all previously released fixes for security and nonsecurity issues. These fixes will also be included in later cumulative updates for Exchange Server 2019. This update also includes new daylight saving time (DST) updates for Exchange Server 2019. For more information about DST, see Daylight Saving Time Help and Support Center.

Known issues in this cumulative update

In multidomain Active Directory forests in which Exchange is installed or has been prepared previously by using the /PrepareDomain option in SETUP, this action must be completed after the /PrepareAD command for this cumulative update has been completed and the changes are replicated to all domains. Setup will try to execute the /PrepareAD command during the first server installation. Installation will finish only if the user who initiated SETUP has the appropriate permissions.

Issues that this cumulative update fixes

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

• 4502134 Can’t get all the emails when searching mailbox by using an end date that’s different from today in Exchange Server 2019
• 4502135 Correct the error message that you receive when installing Exchange Server 2019 in an organization that has Exchange Server 2010 installed
• 4502154 Providing information to administrators when auto forward limit is reached in Exchange Server 2019 and 2016
• 4502155 “The primary SMTP address must be specified when referencing a mailbox” error when you use impersonation in Exchange Server 2019 and 2016
• 4502156 Audit logs aren’t updated when “-WhatIf” is used as $false in the command in Exchange Server 2019 and 2016
• 4502157 The Find command not returning the HasAttachments element in Exchange Server 2019 and 2016
• 4502158 SyncFolderItems contains duplicated ReadFlagChange items in Exchange Server 2019 and 2016
• 4502131 “TLS negotiation failed with error UnknownCredentials” error after you update TLSCertificateName on Office 365 send connector in Exchange Server 2019 hybrid environment
• 4502132 Can’t reply to old emails after migration even though old legacyExchangeDN is set to migrated mailbox in Exchange Server 2019 and 2016
• 4502136 The response of FETCH (BODYSTRUCTURE) command of IMAP violates RFC 3501 in Exchange Server 2019 and 2016
• 4502140 Can’t preview an eDiscovery search when there are multiple domains in Exchange Server 2019 and 2016
• 4502141 Appointment that’s created by responding to an email message doesn’t show in any Outlook calendar views in Exchange Server 2019 and Exchange Server 2016
• 4502133 Can’t use Outlook on the web to reply a partner email through mutual TLS in Exchange Server 2019 and 2016
• 4488396 Can’t search any results in manually added shared mailbox in Outlook in Exchange Server 2019 and 2016
• 4488078 Public folder contact lists don’t show contact’s profile picture in Outlook on the web in Exchange Server 2019 and 2016
• 4499503 Heavy organizational forms traffic because of materialized restriction when organization forms library has more than 500 items in Exchange Server 2019 and 2016
• 4503027 Description of the security update for Microsoft Exchange Server 2019 and 2016: June 11, 2019