Provider wants to install or renew installed SSL certificate on POA-managed Microsoft Exchange servers.
Use native Exchange tools to install or renew SSL certificate - Exchange Management Shell (EMS). The following cmdlets may be used to operate SSL ceritificates in Exchange infrastructure:
New-ExchangeCertificate - to create certificate request file to be signed by Certificate Authorities
Import-ExchangeCertificate - to import the received certificate
Get-ExchangeCertificate - to get the list of SSL certificates registered in the local Windows certificate storage and obtain thumbprint ID for the certificate
Enable-ExchangeCertificate - to enable certificate
See more details in the POA Provider Guide: Installing SSL Certificate from Certification Authorities.
Also refer to the official Microsoft documentation.