After I left a public facing role I had to deal with stopping a lot of spam. Apparently everyone with something to sell thinks the fact my email address was pu

After I left a public facing role I had to deal with stopping a lot of spam. Apparently everyone with something to sell thinks the fact my email address was published on the website meant I was actively trying to subscribe to their nonsense. I found that a polite email to customer service and/or abuse contacts at the technically-this-side-of-legal spamhouses (constant contact, mailchimp, etc) is usually enough to get yourself on a sitewide blacklist.