In most cases, you will not have to worry about sending emails in "HTML" or "Rich Text" format, since nearly all modern email programs can handle pictures and formatting inside messages. But in some cases, you will need to send "plain text emails", in other words an email message that contains absolutely no pictures or formatting information. This technique also helps avoid having your email potentially flagged as spam: the top two tools of spammers are including images in their email, and including URL's (web addresses). Not including any pictures or website address in an email greatly reduces the chances of seeing it wrongly perceived and filtered as spam (junk mail). In this tutorial, we will explain how to send a plain text email from Hotmail, even if your email signature already includes pictures and/or rich formatting information (Hotmail will automatically convert to text as you'll see).
Windows Live Hotmail lets you send a plain text email whether you are composing a brand new email message, or whether you are replying to or forwarding an email that included pictures and/or rich formatting information.
Here's how you send a plain text message:

While you can choose "Plain Text" after having finished composing an email message, it is better to do it at the beginning, since Hotmail may remove or change some of the email body's content to accommodate plain text format.
And that's all it takes to compose and send a plain text email message from Hotmail!