Hi!
One user might want IMAPdir while another Maildir++, one might use the depot path "Mail" while another uses "Maildir".
Hmm, I would never allow a user to select his mailstorage independently. This only increases support volume...
You should make this feature optional (./configure argument or global config).
Btw: I'm running the latest stable Binc for some time now without any problems for 1500 users! Very impressive performance; keep up the good work! :o)
Bye, Philipp
