Unsubscribe via double opt out

Hi there,

quick question regarding unsubscribing from a newsletter: I don't want subscribers to log in to the backend of WordPress to be able to unsubsribe from a newsletter. Can this be somehow accomplished by using a form consisting of an email-field and a button 'unsubscribe'. The subscriber then receives an email with one or more links (depending on the number of subscribed newsletters) and is able to choose which newsletter he'd like to unsubscribe.

Any ideas?

Thanks,
Holger