BuddyPress.org

Hi. I have found a solution to that no activation email has sent. Check this out http://www.thinkplexx.com/neokrates/fix-wordpress-and-buddypress-sendmail-problems-sign-up-complete-activate-your-account-via-the-email-but-email-doesnt-come

I actually used Google mail account. There in Google account settings also probably has to set that you use imap. I’m not sure of that. But now the activation email is sent and users can register.