Using HTML allows you to creatively add images and other rich formatting to your email signatures and messages. Open Leads, by default creates HTML emails via our built in WYSIWYG (What You See Is What You Get) editor, so all you have to do to create basic HTML emails is enter the information on in the editor, and add enhancements, much like you would in your computer's word processor application.
Advanced users can still add their own custom HTML, or work directly in the source code by clicking on the "Source" tab at the bottom of the edit screen. You may use any of the standard HTML formatting tags to enhance your text and the look of your messages in Open Leads.
To embed an image in an HTML email message, use standard image source tags, i.e. "< img src="graphicfile.jpg" >" plus any sizing constraints you need to use.
The only caveat is that either the image file has to be hosted on a public file server (such as Flickr or Photobucket) or your own web server and should be referenced with absolute links, OR, you can attach the file to the email itself and reference it using the "Token" that Open Leads assigns to it. For example - if you attached your logo to an email as a file attachment, it will be refered to once attached as [File XXXXXX]. Use this file Token in the image source tag, and you can display it in the body of your message, or in a signature you have created. In this instance, your HTML would be: < img src="[File XXXXXX]" >
You can add a lot of visual impact to your messages using HTML when composing a message in Open Leads, a so basic knowledge of HTML coding is highly recommended. A good basic tutorial can be found here:W3schools.com.