I will first describe my needs. I would like registered users to send private messages between them. No need for chat or anything more advanced.. Just simple messages.
Secondly, it would be good that I could have 2 user roles. One user role would make a post through form on my website, and second user role would be able to reply to them in a form of a message.
Is BuddyPress able to do that and which additional plugins (if any) do you recommend?