Specifies how the body of the e-mail is displayed.
| Name | Value | Description |
|---|---|---|
| mfHTML | 2 | The e-mail is displayed as Hyper Text Markup Language (HTML). |
| mfPlainText | 1 | The e-mail is displayed as plain text. |
| mfRTF | 3 | The e-mail is displayed as Rich Text Format (RTF). |