I have the following problem:
Outlook clients receive an SSL error when they connect to the Exchange server. This is because I don't have a ssl certificate for the internal domainname.
I own a ssl certificate for mail.externaldomain.com, I tried to order a ssl certificate for mail.internaldomain.com but I am not allowed to purchase that because we don't own the *.internaldomain.com.
In order to workaround this problem I changed the autodiscover url to mail.externaldomain.com, and this way the ssl error disappeared, but the clients now have to login everytime they open the Outlook client....
How can I resolve this problem??