In this article, we will see how to bind the new certificate for Exchange Services in Exchange Server 2016
Open Exchange admin center, Server–> Certificates and select Server
Click Import Exchange certificate
Enter the Certificate’s shared path and password and Click Next
Click on (+) to Add servers
Click on Finish
You will see the Certificate
If you run Get-ExchangeCertificate, you will see the services are associated with default Certificate
Run the below Powershell Command to enable the services on the new certificate
Enable-ExchangeCertificate -Thumbprint <Certificate thumbprint> -Services “IMAP, POP, IIS, SMTP”
once done, Now access the Site and you will see the new certificate is bonded.