SSL certificate for email

[davpgeorge]

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.

[#2]

Something here might help.

https://www.godaddy.com/help/exchange-server-2016-install-a-certificate-27338

[#3]

@Dave Patrick I appreciate the link. I have already followed those instructions and the certificate shows to be valid. I did some more digging and found a link that I think better explains part of my hangup. Looks like it has more to do with bindings. https://enterpriseit.co/windows-server/iis-manually-specify-new-ssl-cert/

I still need to know if I can remove the old, expired certificate or not.

[#4]

Hello, yes I'd just get id of it.  

https://social.technet.microsoft.com/Forums/lync/en-US/3f245367-9463-42c5-9847-9a9cdd0c561b/remove-e...