I have NS7 Beta 1 installed on ienna virtuallen machine, so far everything works quite well.
Unfortunately, I can at SOGO 3 not log, no user is detected.
Wrong user / password
Users, however, applied, and works … weird
I use Samba 4 as a user backend.
V7 is the best!
Looking forward when WordPress and ownCloud are and phpmyadmin implemented as finished modules