What's the right pass to contact.php

Hi folks,

I try to include a link to the site contact form in my email footer. What's the right pass to the form contact.php? I don't want to do the Mailto: thing but instead lead to the site contact form.

Cheers, thomlin

p.s. have to refine my question. You can include a term like {unsubscribe} or {about_us} and the una System will replace the term with the right pass to the right sites. Is there a term for reaching the contact.php form, as well? I know, that its URL is http(s)://mydomain/page/contact. But I would like to have the same like unsubscribe and about us cause that way css for links and spam protection are included.