I\'d like to customize the \"unsubscribe\" links in our email newsletters so that they remove the recipient with a single click. Right now they just point to a generic page
It's not safe to embed email addresses in a newsletter. Not sure about yours but many newsletters ended up in some archive on the web. There are spam bots specifically designed to harvest addresses from mailing list archives.
Email is a safer technology for this. Setup a mail account for unsubscribe and get Email address from mail headers. If you use any mailing list software, it should handle this already.