I thought I would give the Unicode encryption technique a whirl, but I've come across something strange.

I'm using Dreamweaver MX and whenever I convert my <a href="mailto:you@yourdomain.com"> into Unicode it keeps converting back to regular text.

At first it will appear as it should in code view. I then save the file and save it to my server. However when I view the source for the page via IE6, the Unicode for <a href="mailto:you@yourdomain.com"> appears in regular text. When I re-open the file I altered in DWMX, I find that that too has reverted to regular text.

Any ideas why this might be happening?