Setup postfix gmail relay on ubuntu

gistfile1.txt

# YOLO
sudo su

# Install postfix (use Internet Site configuration)
apt-get install postfix mailutils libsasl2-2 ca-certificates libsasl2-modules

# Setup allowed SSL certs
cat /etc/ssl/certs/Thawte_Premium_Server_CA.pem | tee -a /etc/postfix/cacert.pem

# Add to /etc/postfix/main.cf
inet_interfaces = 127.0.0.1
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

# Create /etc/postfix/sasl_passwd
[smtp.gmail.com]:587 user@gmail.com:password

# Map credentials
postmap /etc/postfix/sasl_passwd

# Restart postfix
service postfix restart

# Test email
echo "Test succeed" | mail -s "Smtp relay test" your@email.com

# Optional - setup system emails alias
echo "root: your@email.com" >> /etc/aliases
postalias /etc/aliases
service postfix reload
echo "Test succeed" | mail -s "System alias test" root