Had a similar situation. I made a deal with Prairie Dawg at the end of last week. We exchanged personal info using the PM here on the wire. The next day, I received an e-mail referring to me by my alias here and requesting my zip code “if I was still interested” and signed “Prairie Dawg”. The e-mail header said Intersport Performance. I googled Intersport Performance and it came back to an auto dealership with multiple locations on the east coast when Prairie Dawg had given me his address in the midwest. I contacted Prairie Dawg to keep him informed. Dawg assured me he ONLY handles his deals via PM. I replied to the email with a snarky response, he tried again the next day and I again mocked him. Last I heard from that scammer. Ha ha.
Not really sure where/how he got my email, alias, Dawgs name or what the nature of the deal was but apparently these scammers have some darn good hacking skills nowdays.