This is a problem that I was reminded of today when my self-signed security certificate expired.
I have a MS Exchange 2007 environment on a Windows 2008 server. When Exchange was installed, and initially configured, it came up with the standard self-signed certificate. We have been running on that for a year with only one problem. When the users access their mail through OWA, they receive a certificate error.
Is it possible to have two domains referenced in a self-signed certificate? (servername.internaldomain.local, mail.externaldomain.com)
If so, what is the process to get there? I had to use the Exchange Managment Shell today to get the thumbprint, create a new cert thumbprint, and enable the IIS service (after verifying the others were listed. That process uses all the existing information.
Is there a similar process that will allow me to have both "domains" in the certificate without having to go out and pay a third party?