[Dovecot] Feature Request

[Marc Perkel]

It would be handy (for me) if there were a userdb where a directory 
structure defined the db.

userdb stat {
   mail_location=maildir:/fakedir/%d/%n:INBOX=/email/%d/%n:LAYOUT=fs
}
userdb stat {
   mail_location=maildir:/email/%d/%n:INBOX=/email/%d/%n:LAYOUT=fs
}

The idea being that if the first directory doesn't exist then it will 
try the second one.