Mail

If for some reason, sending messages thru Webforms for example Contact Us forms does not yield a message in HTML format but in simple text format only, the following modules may be useful:

HTML Mail

Lets you theme your messages the same way you theme the rest of your website.

ttps://www.drupal.org/project/htmlmail

Mime Mail

It permits users to receive HTML email and can be used by other modules. The mail functionality accepts an HTML message body, mime-endcodes it and sends it.