SSL certificate for email
My SSL certificate for email on my 2012 r2 exchange server expired. I went to GoDaddy and installed the new valid certificate but now I have both the old expired cert and the new valid cert. Now when I try to create a new email account and migrate it to 365 from my on-premise server (hybrid environment) it errors and says the certificate is invalid. Can I remove the expired certificate? Or is there a different way for the exchange console to recognize the new valid cert instead of the old expired one? I just don't want there to be issues if I remove the old certificate.