You have another href starting within the href text.
remove the following:
href='http://experience.maritzmotivation.com/MoreInfo3Cheers'
Here it is fixed:
<li id="grey-contactus-icon"><a href= "mailto:info@3cheers.com?subject=info&body=The application beta launch will occur the week of May 28, 2013. You will be able to sign up then. If you would like us to contact you when the site is live, please click ">here</a></li>
jsFiddle Fixed:
http://jsfiddle.net/5pZr7/1/
EDIT - FIXED --- TWO OPTIONS, LOOK AT CODE BELLOW
Two options:
1) with an email and an html link inside it:
<li id="grey-contactus-icon"><a href= "mailto:info@3cheers.com?subject=info&body=The 3Cheers application beta launch will occur the week of May 28, 2013. You will be able to sign up then. If you would like us to contact you when the site is live, please click <a href="http://experience.maritzmotivation.com/MoreInfo3Cheers">this link</a>">
Html Link</a></li>
2) with an email with no html link inside it (should work in most email clients this way!)
<li id="grey-contactus-icon"><a href= "mailto:info@3cheers.com?subject=info&body=The 3Cheers application beta launch will occur the week of May 28, 2013. You will be able to sign up then. If you would like us to contact you when the site is live, please click <a href="http://experience.maritzmotivation.com/MoreInfo3Cheers">this link</a>">
Pure Link</a></li>
updated fiddler:
http://jsfiddle.net/5pZr7/8/
EDIT 2 - mailto url encoded link
<li id="grey-contactus-icon"><a href= "mailto:info@3cheers.com?subject=info&body=The 3Cheers application beta launch will occur the week of May 28, 2013. You will be able to sign up then. If you would like us to contact you when the site is live, please click %3Ca%20href%3D%22http%3A%2F%2Fexperience.maritzmotivation.com%2FMoreInfo3Cheers%22%3Ehttp%3A%2F%2Fexperience.maritzmotivation.com%2FMoreInfo3Cheers%3C%2Fa%3E">try this </a></li>