Update Rollup 22 for Microsoft Exchange Server 2010 Service Pack 3 (SP3) was released on June 19, 2018. Before you install this update, you must remove all interim updates for Exchange Server 2010 SP3. Also, see this important information about how to install this update. 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 2010.
This update also includes new daylight saving time (DST) updates for Exchange Server 2010 Service Pack 3. For more information about DST, see Daylight Saving Time Help and Support Center.
Get Update Rollup 22 for Exchange Server 2010 SP3
Microsoft Download Center
The update rollup is only available for download from the following Microsoft Download Center website:
Issues that this cumulative update fixes
This cumulative update fixes the issue that is described in the following Microsoft Knowledge Base article:
4295751 EWS impersonation not working when accessing resource mailboxes in a different site in Exchange Server 2010 SP3
When you install this update rollup on a computer that isn't connected to the Internet, you may experience a long installation time. Additionally, you may receive the following message:
Creating Native images for .Net assemblies.
This behavior is caused by network requests to connect to the following website:
These network requests represent attempts to access the certificate revocation list for each assembly that native image generation (NGen) compiles to native code. However, because the server that's running Exchange Server isn't connected to the Internet, each request must wait to time out before the process continues.
To fix this issue, follow these steps:
On the Tools menu in Internet Explorer, select Internet Options, and then select Advanced.
In the Security section, clear the Check for publisher's certificate revocation check box, and then select OK.
Note Clear this security option in Internet Explorer only if the computer is in a tightly-controlled environment.
When the setup is finished, select the Check for publisher's certificate revocation check box again.
Important Before you apply this update rollup, make a backup copy of any customized Outlook Web App files.
When you apply an update rollup package, the update process updates the Outlook Web App files, if it's required. Therefore, any customizations to the Logon.aspx file or to other Outlook Web App files are overwritten, and you must re-create the Outlook Web App customizations in Logon.aspx.
If you meet both of the following conditions, apply the update rollup on the Internet-facing Client Access servers (CAS) before you apply the update rollup on the non-Internet-facing Client Access servers:
You're a CAS Proxy Deployment Guidance customer.
You have deployed CAS-CAS proxying.
Note For other Exchange Server 2010 configurations, you don't have to apply the update rollup on your servers in any particular order.