Global Aircraft sends the GAC Mailer in two formats: 'HTML' and 'Plain Text'. Different E-mail servers allow different settings. Yahoo, Excite, and Hotmail are three
examples of servers that allow HTML.
Please check with your server as to what it supports. HTML is our default-mailing format; it includes images, tables, and a design similar to the GAC page look. Plain text is unformatted text.