Mesosphere sold every e-mail who registered with them to Tech Global Leads. Either that or Tech Global Leads stole a list of leaked e-mail addresses. In either case I unregistered/unsubscribed from Mesosphere and still got e-mails to those two specific accounts from Tech Global Leads with Mesosphere consulting soliciting. (So they keep e-mail information, even for accounts that unsubscribe).

TGL doesn't even have a website up. They're either amateurs or scammers. Either way, fuck you and your spam, both TGL and Mesosphere. Go die in a fire.