For the past three hours I was trying to make mutt send mail locally to users other than root to no avail. The mail is sent to root fine, but when I try to send it to someone else, like user willz I get an email sent to root with:
<willz@localhost>: cannot update mailbox /var/mail/willz for user willz. cannot
open file: Permission denied
my /etc/postfix is missing /etc/postfix/virtual and I tried various work-arounds posted on the interned and even reinstalling postfix but still can't get mail sent to anyone other than root.