Send email to users who write on a post

[SimonVlc]

Hello, I´m looking for a mod that can make possible to send an email to only the users who had wrote an answer to a post.

I organize various weekly tourneys and I need a form to send the password by email only to the users who showed his interest in participating.

There is something similar to what I need? Thanks a lot, Simon.

[SimonVlc]

So there is nothing similar to this... Nobody had the same problem sending info to only a selected grouo of users?

Thanks, Simon.