I don't think you would blacklist him. He didn't lie or cheat you at all. He's cold calling and hustling. If this is the way you react to unsolicited emails, yo

I don't think you would blacklist him. He didn't lie or cheat you at all. He's cold calling and hustling. If this is the way you react to unsolicited emails, you obviously have no role in business administration, and would lose many opportunities simply because you weren't expecting them.