We have several Exchange 2013 Mailbox servers with certificates which are going to expire in a month. Those certificates were generated by our domain certification authority (it's Windows Server 2012-based). The classic way to renew those certificate is to open EMC, generate a renewal request, send it to the CA, etc.
However, I can open MMC and add the Certificated snap-in connecting it to the local computer store. Can I just right-click the certificate and select All tasks -> Renew certificate with new key ? Or All tasks -> Advanced operations -> Renew this certificate with the same key ? Or can I fulfill the same task using IIS certificate renewal tools?
Those certificates were automatically generated basing using the CA standard Computer template before Exchange services were installed, so they will be renewed automatically. However, Exchange services won't use the renewed certificates automatically, I'll have to assign them manually anyway. I'm just curious if I can speed up the process without waiting for the automatic renewal.
By the way, what would happen if Mailbox server certificates have expired?