I know that users can get emails sent to them any time a comment is left on a specific post, but I need to be able to send the email to all users for any comment that is made on any post. We create events with events+ and comments are left all the time, but we don't want our members to have to go to each event and subscribe to comments for this particular event. Ideally we would have a way for users to "opt in" for email for any comment left on any post. Although not a requirement at this point, the ability to "opt out" of emails for any comment would be good too. I have been looking for a plugin to help with this but am coming up blank.