Exim



PHP:
pico /etc/exim.conf 

ctrl+w


PHP:
driver = smtp 

interface = 22.22.22.22





PHP:
remote_smtp: 
driver = smtp 
interface = 22.22.22.22 

ctrl+x



[PHP]
service exim restart




PHP:
echo "very good" | mail -s "test" xxxx@hotmail.com