i've been trying to find nice ways to send a few emails this year to old users.
these are folks who opted in to receive exactly these emails. and i get amazing traction. it's great for business.
but many of these emails were given to us years ago, i can get a lot of bounces too.
AWS uses heuristics to determine if you're a spammer. every bounce pushes you in the spammer direction.
this makes it nearly impossible for me to send these emails without getting banned.