These two directories should have "dovenull" as group.. It should have automatically figured this out by looking up dovenull's group. I could send some debug patches to figure out what the problem is.. But you should be able to work around it by setting:service imap-login { group = dovenull }
That make the trick. But is strange, in the other dovecot server I own i do not need dovenull for those dirs.
Regards
Javier
