Graceful E-Mail Obfuscation
http://www.alistapart.com/articles/gracefulemailobfuscation

Van Gils, Roel
List Apart, A
2007

Abstract:

Most e-mail obfuscation techniques I've tried tend to be bothersome and time-consuming to implement because they have to be applied to each and every e-mail address that you want to protect. Most require you to use lengthy inline script elements and inline event handlers. They may also invalidate your markup.