Any forums/communities/groups related to mass emailing?

Hey guys, maybe you know any other forums, groups, communities, facebook groups or any other places where i could find people who are into mass emailing business? I’d really appreciate if someone could tell me where i could find these kind of people. Thank you!

I’m interested as well . If you find something like this please let me know. I tested email marketing but have poor results. I think is because of my methods so looking to learn more