/var/mail/$USER read-only

[benfitzg at gmail.com]

Hi,

on building the latest mutt from https://gitlab.com/muttmua/mutt.git I have one
odd problem.

My linux mail box is /var/mail/$USER, previously I had read and deleted mails
from this mailbox, now I get an error message from mutt, telling me the mailbox
is read-only.

Anyone know why this is? The permissions on /var/mail and the file itself do
allow me to write to the file.

Regards,

-- 
Ben Fitzgerald