Not every link on the Web leads to another Web page. Often, pages include links that let people send email to a particular address. This type of link is known as a "mailto," and is just as easy to build as a link to another page.
When creating a link, you sandwich the linked words with the tags <a href="?"> and </a>. A mailto is exactly the same, except you replace the ? with an email address instead of a URL.
And the page would appear like this:
Of course, the words can say anything you want, such as:
Which appears like this: