local email sending/receiving problem
On Redhat 9.0 server, I use sendmail to sedn email, and it just works fine.
But when I send email from root@localhost to guest@localhost, and su guest,
then do a mail to check email, th system says:
guest@localhost mail]$ mail
/var/spool/mail/root: Permission denied
I wanna fix this problem since I am gathering if someone else needs to send email
to guest instead of root from outside, that would create a problem for me.