I recently emailed a guy that, if you sent him a text-only email (as I normally do), it would go into his spam folder or get vanished. I had to turn on HTML ema

I recently emailed a guy that, if you sent him a text-only email (as I normally do), it would go into his spam folder or get vanished. I had to turn on HTML email to send something to him. They used some version of Outlook. Don't know if it was in-house or the Microsoft hosted service or what. Plus whatever gimcrack spam filters they might use in house. I've seen some nonsense on the Internet, but this was a first for me. Absolutely bonkers.