linking to an email address

Hi,

I am having trouble with the links on my site. I have created a link to an email address using the editor, but when I test it in "view my site" it just comes up with an error.
Any help would be appreciated?

Also, I have lots of links on each page, but when I click on each one to check them, it does not show me what it is linked to (despite some of the links working in "view" mode)

Thanks
Damon