I have done lots of mess with certs on my exchange environment, as i prepared to migrate 365..
basically, i request help because my outlook is not working (keeps poping for passwords) - pointing to my autodiscoverinternally just not working well.
i have one cas and MB and one MB alone - 2013 exchange (please don't ask why) - had nasty issues due to storage..etc..
when i ran: Get-ExchangeCertificate -DomainName mail.domain.com
i get two certificates - one purchased online (i want this to be default of all services), and one self-signed one - i would want to remove from reference of -domain (mail.domain.com & autodiscovery.domain.com)
i request for command to force my online cert to over-write the selfsigned one in this case (of owa & autodiscovery).
*** is there a command Enable-ExchangeCertificate -Thumbprint - domain -mail.domain.com, autodiscover.com**
FYI: when i open owa -- i get notified that cert (selfsigned one) is INVALID (by right-clicking on cert info)
thanks