sudo apt-get install dnsutils curl postfix mailutils libsasl2-2 ca-certificates libsasl2-modules
sudo vim /etc/postfix/main.cf
relayhost = [smtp.gmail.com]:587 smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = noanonymous smtp_tls_CAfile = /etc/postfix/cacert.pem smtp_use_tls = yes
sudo vim /etc/postfix/sasl_passwd
[smtp.gmail.com]:587 USERNAME@gmail.com:PASSWORD
sudo chmod 400 /etc/postfix/sasl_passwd sudo postmap /etc/postfix/sasl_passwd
cat /etc/ssl/certs/thawte_Primary_Root_CA.pem | sudo tee -a /etc/postfix/cacert.pem OR cat ./raspberry_tools/Thawte_Premium_Server_CA.pem | sudo tee -a /etc/postfix/cacert.pem
sudo /etc/init.d/postfix reload
echo "Test mail from postfix" | mail -s "Test Postfix" you@example.com
@reboot /home/pi/bin/raspberry_tools/mailip 0 * * * * /home/pi/bin/raspberry_tools/mailip