Well if you put:
CODE
<a href="mailto:user@domain.com">Email Me!</a>
It doesn't necessary open Outlook. It will open your default email client, and that may be Outlook. The main way to avoid this is by posting your email address like this:
CODE
You can contact me at: user@domain.com!
Or, alternatively make a PHP mailing form. (Although Zymic Hosting doesn't allow the use of the PHP mail function unless you send $10 to Jack to manually turn it off)
Jacob.