Western uses many different bulk email systems (Mail Chimp, Fire Engine Red, and others). The following is an example of a letterhead-styled email template first developed for use in Admissions, but it can be used by anyone who is sending bulk HTML emails.
CollegeNET has stricter rules on templates and what it HTML/CSS it accepts. A specific template has been created just for CollegeNET. Admissions and the Graduate School have tested it out.