bellmail: lockf(/usr/spool/mail/uucp): permission denied

I keep getting the following errors and I don't know where to look to resolve the problem. Any ideas?

bellmail: lockf(/usr/spool/mail/uucp): permission denied
bellmail: lockf(/usr/spool/mail/root): permission denied
bellmail: lockf(/usr/spool/mail/daemon): no such file or directory....

AIX O/S on RS6000-IBM

Try these links for more info - check your directory permissions on /usr/spool/mail and below. Your mail process may be attempting to deliver mail and either can't because of the lock file, permissions, or in the case of daemon, doesn't exist.

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