> What the hell? This is crazy. Reporting an email as spam does not just protect you from receiving further emails, it reduces the reputation of the sender and makes it less likely their emails will get through, even to other customers who want them.
LEARN TO USE OPT-IN. Learn to confirm that opt-in. Resist the urge to send unsolicited bulk email just because you have some tenuous "previous business relationship".
We're talking about a transactional email, not marketing.
Let's say you create a free account at GitHub. GitHub sends you an email to confirm the account creation. This guy marks those as spam. It makes no sense.
LEARN TO USE OPT-IN. Learn to confirm that opt-in. Resist the urge to send unsolicited bulk email just because you have some tenuous "previous business relationship".