Describe each of the three message formats offered by Outlook.

What will be an ideal response?

Outlook offers three message formats: HTML, Plain Text, and Rich Text.
• HTML format is the default format for new messages in Outlook. HTML lets you include pictures and basic formatting, such as text formatting, numbering, bullets, and alignment. HTML is the recommended format for Internet mail because the more popular e-mail programs use it.
• Plain Text format is recognized by all e-mail programs and is the most likely format to be allowed through a company's virus-filtering program. Plain Text does not support basic formatting, such as bold, italic, colored fonts, or other text formatting. It also does not support pictures displayed directly in the message.
• Rich Text Format (RTF) is a Microsoft format that only the latest versions of Outlook recognize. RTF supports more formats than HTML or Plain Text, as well as hyperlinks. A hyperlink can be text, a picture or other object that is displayed in an e-mail message.