CAN-SPAM only requires a link in the email, but nothing about a working link. Often times, those links do indeed trigger a "someone reads this mailbox" and add

CAN-SPAM only requires a link in the email, but nothing about a working link. Often times, those links do indeed trigger a "someone reads this mailbox" and add you to other mailing lists (yes, plural). I worked with a dev who had been at a "marketing" company and explained this stuff.