I would still consider it as unsolicited if I didn't opt in to receive further emails. Just because I bought something from a company once doesn't mean I'm happ

I would still consider it as unsolicited if I didn't opt in to receive further emails. Just because I bought something from a company once doesn't mean I'm happy to receive a "please rate us" begging email, an offer to look at their other products, and a "merry Christmas to all our customers" message. Not really spam in the traditional sense but these type of emails seem especially prevalent at the moment and dealing with them is a big time sink.