> If I get a single email after I've unsubscribed I go back in my inbox and mark every single email I ever received as spam.
Fuck me, that is brutal and could absolutely ruin your SES complaint rate - even with the suppression filter on, as the emails are already in your inbox.
Good. Don't send spam. If you're sending spam, then you clearly don't care about your complaint rate.
When I worked on a notification system that sent over a billion messages a month. We received spam complaints on emails sent 6+ years ago. No correlation, just a one-off spam complaint. I always wondered why this was happening.