Why didn’t we get an email?

We were on a sales call with a B2B ecommerce brand recently. While chatting, we quietly opted in to their email list — just to see what would happen. Ten minutes later, we still hadn’t received a follow-up email after opt-in. No “hi”, no “welcome”, no “special offer”, nothing. Zip. Nada. So we told them. Right there on the call. The CEO looked stunned. The marketing director said, “Well, we aren’t worried about that… you’re not our ideal customer.” My response: “How do you know that?” And...