What is a honeypot?

I am engaged in email marketing and recently came across something new, I wanted to learn more about it from people with experience.

There is such a thing in email as spammers, and a bait was created for them. A friend told me about it honeypot meaning trap. This site has all the useful information on how it works, how it works and, most importantly, how to avoid getting caught yourself. It's simple, easy and convenient!