Passing email value to URL in contour umbraco
<p>I have a Request Quote for in Umbraco using Contour and upon submitting successfully this form, the use is redirected to a Thank You Page (In settings in the Contour, i'm using "$currentPage/* [@isDoc]/@id" to redirect to the Thank you page). For some marketing actions, i need to parse the email value of the form to the URL like this for tracking purposes: 
<a href="http://www.mywebsite.com/thank-you.aspx?email=xxx@y.com&amp;recordid=123456789" rel="nofollow">http://www.mywebsite.com/thank-you.aspx?email=xxx@y.com&amp;recordid=123456789</a> </p>

<p>Since "@" is a reserved character, we can make it to "%40".</p>

<p>How can i do that? Any idea please.</p>