Simple alternavite to sendmail (with smtp authentication)

apt-get install ssmtp
service sendmail stop
chkconfig -e sendmail -> off
mv /usr/sbin/sendmail /usr/sbin/sendmail.orig
sudo ln -s /usr/sbin/ssmtp /usr/sbin/sendmail

#ssmtp konfiguration
root=silvan
mailhub=smtp.domain.com
hostname=yourserver
AuthUser=user@domain.com
AuthPass=mypassword