Email messages can be deployed in one of three formats: Plain Text, HTML, Multipart MIME. When you deploy a message, a fourth option allows you to let Subscribers determine the format they wish to receive.
|Plain Text||1||plain||Text only with no formatting other than the use of line breaks and spacing.|
|HTML||2||html||Rich text content supports images, font sizes, colors.|
|Multipart MIME||99||mime||Both HTML and Plain Text merged into one message. Subscribers will automatically see the content in the format their email client is set to display.|
|Subscriber Selected||na||na||The format defined in the Subscriber's subscription record for the List specified. Subscriptions default to the Plain Text format. Only use this option if you have allowed Subscribers to define their preferred format or you have imported your List and defined the format upon import.|