In order to create a new certificate, you need to generate a certificate request using either the Exchange Admin Center, or through the shell using the
New-ExchangeCertificate cmdlet. Once you have a certificate request generated, you can obtain a certificate from an internal Certificate Authority or a third-party external
Certificate Authority (CA). In this recipe, we'll take a look at the process of generating a certificate request from the Exchange Management Shell.
Let's see how to generate a certificate request using the following steps: