My reading is that in your comment they replied to, you said you require confirmation for unsubscription.
One click unsubscription is presumably what they want.
One click unsubscription is presumably what they want.
My experience is that every unsubscribe goes to a form w/ a submit button. Shitty ones make you type your email address. (Mine doesn't.)
No idea if this holds if/when the email crawler bots start executing JS on crawl.
Just did a bit of unsubscribing and sydneytools.com.au, abc.net.au, squabblr.co, bundlehunt.com, and healingstreams.tv all one click unsubscribe.