In addition to sending the newsletter, SunMailer also supports sending a customized email message. This will go out to all users subscribed to at least one section. To ensure that users receiving the newsletter in both text and HTML can read the message, the message must be sent out in a text format. To send a custom message, go to: Administer > Site configuration > SunMailer > Send email > Send custom email Fill in the subject line of the email and its body. Click the Preview button to preview the message; check the confirmation checkbox and click the Send button to send the message.