
The program /usr/lib/xfmail/mailbox is added by me (the Debian maintainer) to
address a problem in the design of the XFMail program and the Debian standard
for mail spool permissions. It's primary purpose is to operate on mbox file's
- it will create your spool file in /var/spool/mail if one doesn't exist, it
also can be used to lock/unlock mbox folders. It is a fairly simple program
which I hope means no problems (security related) will be found with it...

