DemoYou might want to send mail to RjyAuaNlgyoe04Y@here.fishy.fishy.
But since that hostname doesn't exist, you can't. If you want, you can decode that to verify that it works.
The site key used was "sharkbait-demo". Note that I'm breaking my rule of not divulging my site key, but since this is only a demo it doesn't matter. Indeed, a spammer would be quite the dunce to harvest an address off of a site that distributes harvester-defeating tools, eh?