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Exchange Team Blog

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Released: August 2023 Exchange Server Security Updates

Microsoft

Aug 08, 2023

Update 10/10/2023: Our recommendation to address CVE-2023-21709 is now changed; please see the changes below. Update 9/12/2023: As a part of the September 2023 "Patch Tuesday" we have released a fe...

Updated Oct 10, 2023

Version 18.0

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Exchange Team Blog

You Had Me at EHLO..

GGGreg

Copper Contributor

Aug 15, 2023

We can't seem to renew the certificate after upgrading to the latest version.

This command:
Enable-ExchangeCertificate ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE -Services SMTP -Server exchange001

Gives this error:
The Exchange Certificate operation has failed with an exception on server exchange001. The error message is: Unknown error (0xe0434352)

Details:

Running on Exchange 2016 CU23 (15.01.2507.031) on Windows Server 2016

If you have any idea, we would highly appreciate, the certificate is expiring in a very short time!