HTML

mailto subject

<a href="mailto:test@example.com?subject=Testing out mailto!&body=This is only a test!">Second Example</a>

mailto subject

<a href="mailto:test@example.com?subject=Testing out mailto!">First Example</a>

add subject and body to email link

<!--
	You can add a subject/body to a mailto: link by using ?subject= or ?body=
	If you need to use both, then ensure the second param is postfixed with 
	"&" instead of "?"

	Here are a few examples:
-->

<!-- Add a subject -->
<a id="linktoemail" href="mailto:test@test.com?subject=This%20is%20a%20subject">Click here to trigger email</a>

<!-- Add a body -->
<a id="linktoemail" href="mailto:test@test.com?body=This%20is%20the%20body%20text">Click here to trigger email</a>

<!-- Add a subject and a body -->
<a id="linktoemail" href="mailto:test@test.com?subject=This%20is%20a%20subject&body=This%20is%20the%20body%20text">Click here to trigger email</a>