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  • Author: mitsumi
  • Date: 2-07-2021, 09:12
2-07-2021, 09:12

Microsoft Exchange Server 2016 CU21

Category: Software » Software PC

Microsoft Exchange Server 2016  CU21

Microsoft Exchange Server 2016 CU21 | 1.8 Gb
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The Microsoft development team is pleased to announce the availability of Cumulative Update 21 to Exchange Server 2016. This update include fixes for customer reported issues, all previously released security updates, and a new security feature.

Released: June 2021 Quarterly Exchange Updates

Exchange Server AMSI Integration

As mentioned in our recent blog post, the June 2021 CUs include new Exchange Server integration with AMSI (Antimalware Scan Interface). AMSI exists in Windows Server 2016 and Windows Server 2019, and the new integration is available in Exchange 2016 and Exchange 2019 when running on either of those operating systems. For Exchange 2016, AMSI integration is available only when running on Windows Server 2016. It is not available for Exchange 2016 running on Windows Server 2012 or Windows Server 2012 R2.

AMSI integration in Exchange Server provides the ability for an AMSI-capable antivirus/antimalware solution to scan content in HTTP requests sent to Exchange Server and block a malicious request before it is handled by Exchange Server. The scan is performed in real-time by any AMSI-capable antivirus/antimalware solution that runs on the Exchange server as the server begins to process the request. This provides automatic mitigation and protection that compliments the existing antimalware protection in Exchange Server to help make your Exchange servers more secure.

Because we know that some of our customers modify the web.config file on their Exchange Server, we wanted to let you know that installation of the June 2021 CUs will add a new section in the web.config of every HTTP service under. The entry will be called "HttpRequestFilteringModule" and it must be present for AMSI integration to work.

Cumulative Update 21 for Exchange Server 2016 (KB5003611) - Release date: June 29, 2021

Issues that this cumulative update fixes
This cumulative update also fixes the issues that are described in the following Microsoft Knowledge Base articles:
- 5004612 Message body not displayed in OWA if the message was added in Outlook to a new mailbox
- 5004613 OutOfMemory exception when moving a public folder that has a large ICS sync state
- 5004614 Korean text is garbled in calendar invitation to a user with a Chinese display name
- 5004615 "InvalidOperationException" and Store Worker process crashes during mailbox move
- 5004616 Changing the email address in EAC doesn't work in modern browsers
- 5004618 MSExchangeMailboxAssistants 4999 Crash in ELCAssistant.InvokeInternalAssistant with System.NullReferenceException
- 5004619 Mailbox creation through ECP fails after installing Exchange Server 2019 or 2016 April update
- 5004629 No version updating after you install Exchange Server 2016

Exchange Server 2016includes a number of advanced features for organizations to have a resilient deployment of email across multiple customer sites. It is closely integrated into other products such as Office, SharePoint, Skype for Business (formerly Microsoft Lync) and Office 365, and it shares a similar interface to Exchange Server 2013.

Many of the features in Exchange 2016 were first deployed in the cloud with Office 365 before coming to the on-premises version of Exchange. However, some features such as Clutter won't be included because they require Office Graph to work.

Exchange 2016 includes improved features and capabilities from previous versions of Exchange. These include a faster database availability group (DAG) failover time, which dropped from about 30 seconds to about 18 seconds, and a 22% lower input/output operations per second (IOPS) from Exchange 2013.

Exchange 2016 combines the mailbox and Client Access Server (CAS) roles, which should allow for simpler designs and architecture. It also includes support for BitLocker to provide additional protection for data at rest as well as enhancements to support hybrid Exchange setups.

Cumulative Update 21 for Microsoft Exchange Server 2016 was released on June 29, 2021. This cumulative update 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 2016.

This update also includes new daylight saving time (DST) updates for Exchange Server 2016.

Exchange team veteran Greg Taylor explains how the on-premises version of Exchange 2016 benefits from the proven cloud-based features and functionality of Exchange Online.

Microsoft Corporation,leading developer of personal-computer software systems and applications. The company also publishes books and multimedia titles, offers e-mail services, and sells electronic game systems, computer peripherals (input/output devices), and portable media players. It has sales offices throughout the world.

Product:Microsoft Exchange Server
Version:2016 CU21 Build 15.01.2308.008 MSDN
Supported Architectures:x64
Website Home Page
System Requirements:PC *
Size:1.8 Gb

The following is a list of recommended and required items for installing Exchange Server 2016.

Exchange 2016 Server Requirements

- Coexistence: Requires Exchange 2010 SP3 UR11 or Exchange 2013 UR10
- OS: Windows Server 2012 R2 Standard or Datacenter (full GUI required, Core not supported).
- CPU: Minimum of 2 CPUs with 2 cores each; Intel and AMD are supported.
- Memory: For Mailbox role, 8GB memory minimum; Recommend 16GB or higher.
- Page file: Amount of RAM + 10MB, not to exceed 32778MB (32GB) for initial and maximum size.
- System (OS) partition: Must be NTFS. Recommend 120-150GB.
- Data partition(s): Can be ReFS. Total size of all legacy EDBs + optional 30-40% minimum for growth.
- Domain Controllers (DC): Must be Windows Server 2008 or newer.
- Active Directory Forest Functional Level (FFL): Must be Windows Server 2008 or newer.
- IPv6: Do not disable.
- .NET Framework: Only .NET Framework 4.5.2 is supported currently.
- Outlook Clients: Outlook 2010 with KB2965295 or newer (for Windows); Outlook 2011 for Mac or newer (for Mac).

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