Exchange Server 2013. Cumulative Update 23 for Microsoft Exchange Server 2013 was released on June 18, 2019. This cumulative update includes fixes for nonsecurity issues and all previously released fixes for security and nonsecurity issues.

If you are trying to set up an Exchange account in Outlook, ask the organization that gave you the email address for the name of your Exchange server. It's standard for them to provide you with this information so you can add your email address to a computer or phone.

Exchange Server 2013. This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and Exposures (CVE): CVE-2022-21979 - Microsoft Exchange Information Disclosure Vulnerability.

Update your Exchange server to the latest CU, install May 2022 SU and then follow the steps above. Note: You need to run /PrepareAllDomains only once per organization and those changes will apply to all versions of Exchange Server within the organization.

Exchange Server 2013. This security update rollup resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and Exposures (CVE): CVE-2022-23277 | Microsoft Exchange Server Remote Code Execution Vulnerability. Improvements in this update.