Scenario: You have already typed in the Email Address in the 'To:' 
                field in Mail for a contact that you know exists in Daylite,
                and DMI alerts that the contact does not exist.

This could be because of several reasons:
    -Either the email address in Mail, or the email address Daylite is incorrect.
    -Or, this is another email address of that same Contact, which has not been registered in Daylite.

You can try the following:
*Click on the 'Add to Daylite...' button in the DMI drawer in Mail.
*The 'Find Contact in Daylite' sheet will appear.
*Type in the First and last name of the contact you are looking for.
*Click the 'Find' button
*Select the Contact from the results pane of the 'Find Contact in Daylite' window.
*Click on the 'Add Email' button.