Just sent one to spam for putting "Urgent" on the email title and then outright lying or at least making misleading claim right in the first email.

Two of these bozos contacted me on a personal address that I have never used for anything work-related, but does happen to be the email I have registered as my Amazon shopping account. When I wrote back and told them to stop spamming my personal address that had nothing to do with tech work, they said it wasn't their fault, because they had just bought the email list from someone else who had done the work to cross-reference my personal email address with my professional identity. As if that would give me any more trust in them as a company!? To me it just made me even more resolute never to work at any of those "big tech" outfits. None of them seem to care one bit about people's privacy.

Rocket Reach is a very popular vendor for such info.