Just wondering if any of you have run into situations where folks who are not in a Smart List receive an email? We have a situation where a person who was not in our database, and not in the send Smart List, received an email and subsequently unsubscribed/reported an issue.
My gut feeling says maybe there is an address we are sending to that has a forwarding rule? But, I thought I'd pick y'alls brain to see if you had any other theories for how that could have occurred? I'll be interested to get some feedback :-)