Re:How Gmail’s New Inbox Is Affecting Open Rates
by thrownaway2424 on Tuesday July 23, 2013 @02:19PM
(#6091891)
This only works for senders with decent reputation. For borderline spam, manual markings will not trigger the unsubscribe.
cite: http://gmailblog.blogspot.com/2009/07/unsubscribing-made-eas...
(BTW, I love how Gmail will attempt to unsubscribe you when you mark a marketing email as spam, which is also very nice)