Would an SSL certificate for a website's domain (hosted remotely) be useable by an email server that is in-house? Does it matter that the IP addresses will be completely different?

This is for Exchange 2010.

 

yeah I don't think that will work. Granted I've got limited experience with SSL certs...

 

Wait I'm not entirely sure what you're asking?

All I know is that the SSL Certificate needs to be installed on the server. Then when a browser/client hits that server, that server creates a handshake between the server and the browser/client for secured communication. IP address does not matter in this case as all it matters is the cryptographic secret key that the server and the browser/client agreed upon during the handshake.

 

The webserver (for the website) is off-site. The mail server is here, on site. Thus, different IP addresses.

Now, if I get an SSL certificate that covers the entire domain (such as ***.example.com) I assume mail.example.com would be covered too. Normally one could just take that certificate and put it into a mail server.. but this is a bit different.

I'm getting conflicting info from Google searches. I'm guessing I'll probably just have to call and deal with a salesperson..

 

If you get a wildcard SSL cert, you can put it everywhere. As long as the DNS resolves to the hostname (and in this case, the hostname is everything in your domain), you're fine.

It would be a management nightmare if SSL certs were mapped to IP addresses.