I've been trying to get Email to work properly on a Window Server 2012 R2 system, using RDP. It tests OK when I do the email test using the domain administrator account. However, when I use a user account, even if I have them set to have local administrator rights, and run Adagio As Administrator, the test fails.

Is there a troubleshooting document regarding email setup?
Can someone give me a description of the steps that Adagio goes thru during the email test?
Someone mentioned that some email information is kept in the registry. Is there a document that lists what registry keys Adagio needs access to?

Thank you in advance for your help.