As someone who maintains email campaign servers and mailing lists, most people who report as spam do so as a last resort. Many have tried to unsubscribe, and of

As someone who maintains email campaign servers and mailing lists, most people who report as spam do so as a last resort. Many have tried to unsubscribe, and often their email isn't in our system; usually they have a mail list forward it to them, and they don't know which mail list.