yum install mutt sendmail
vim /etc/Muttrc
set sendmail="/usr/sbin/senmail -oem -oi"
#save and quit editor:
!wq
service sendmail restart
chkconfig sendmail on
echo "Alert message!!!" | mutt -e "my_hdr from:sender<sender@mydomain.com>" -s "[Warning]Title " receiver@xxxx.com
