Check this article - https://learn.microsoft.com/en-us/Exchange/architecture/client-access/renew-certificates?view=exchserver-2019
SSl certificated renewal for exchange 2016 with powershell
I have my SSL certificate expired in Exchange 2016. I am not sure how to renew it by power shell because eac es not an option any more.Thank you
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Jarvis Sun-MSFT 8,751 Reputation points Microsoft Vendor
2023-05-03T07:55:57.4266667+00:00 Hi @GiovannaMicheel Salinas Rosas ,
Since you submitted a similar question, you can refer to my other answer: Renew SSL certificate Ecchange 2016 with a Goddady Certificate - Microsoft Q&A
First of all, please make sure you have successfully installed the intermediate certificate to your Exchange Server 2016, detailed steps you can refer to: Exchange Server 2016: Install a certificate | SSL Certificates
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Then you can use below powershell cmdlet to renew your certificate, detailed steps please refer to: Renew an Exchange Server certificate | Microsoft Learn
Get-ExchangeCertificate -Thumbprint <Thumbprint> | New-ExchangeCertificate [-Force]
If you don't know how to open the Exchange Management Shell in your on-premises Exchange organization, see Open the Exchange Management Shell | Microsoft Learn
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