You may know it as ham. Or bacon (spelled ‘bacn’). I guess email marketers have a penchant for meat products. Most people, however, just call it graymail.

Never heard of it? I hadn‘t either until a coworker casually dropped it in conversation and left me with a few dozen follow-up questions. Here’s what I learned.

What is graymail?

Graymail vs. Spam

Graymail vs. Graylisting

Where does graymail go?

How does graymail affect email marketers?