[Dovecot] Mail location security

[Roman Gelfand]

I am not sure I understood this issue correctly...  When using maildir
with ie ldap.  Suppose ldap attribute settings say gid 8 and uid 999,
Those are the permissions for every email address.  If so, someone who
has access to one email user on the server, has access to all.  If
this is so, is using mailbox instead of maildir resolve this problem?

Thanks in advance