Hello All

I just have a question regarding exchange owa certificate which is about to expire. (owa.domain.com, autodiscover.domain.com, mail.domain.com )

I have 

Site one 
  Mailbox 2013 Server1
  CAS 2013 Server1
  Edge 2013

Site 2
   Mailbox 2013 Server2
   Cas 2013 Server2
   Edge 2007

Exchange high availability configured. On ECP I am seeing my OWA certificate about to expire on both CAS on the same day(same cert)
I would like to create a new certificate, not renew as I have some old domains to remove from the cert.

My question is, when I create the the new request from ECP - Cas Server1, send to the CA and then install the, how will this reflect for the certificate that is expired on CAS server2? 

Thanks

 

Create the CSR on CAS1, include all the names that you want/need on the cert and then send in the CSR. Once you have the new cert complete the CSR on CAS1, then Export the Cert from CAS1 and import on CAS2.

Hi nricki,

Agree with Hinte, you can export the new certificate which was created in CAS1 server and then import it to CAS2 server.

The following article for your reference:

How to Export/Import an SSL Certificate to Multiple Exchange 2013 Servers

Best regards,

Thank you Niko and Hinte

The cert that is about to expire, which I am not renewing but creating a brand new requestion. 

Do I remove that before applying the new cert ? Or just leave it as is?

Sorry not much of a certificate person

No need to remove the old cert.  When you assign the new cert to the services you need, it'll be active and the old one wont be used anymore.