fixedHardlink check blocking dovecot data
Bug where DA's extra security checks are too aggressive when it comes to hardlinks created by dovecot.
The checks are relaxed slightly, in that a hardlink can exist, as long as it's chowned to the user.
hardlinks owned by other Users are not allowed.
Symbolic links are allowed if the link is owned by the user and pointing to a user file.
A user owned symlink pointing to a non-user file is not allowed.