GCP - Sending email with SendGrid

ref: https://cloud.google.com/compute/docs/tutorials/sending-mail/using-sendgrid

https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-postfix-on-ubuntu-16-04

If you need to ever return to re-adjust these settings, you can do so by typing:

sudo dpkg-reconfigure postfix

• Generate the SASL password map using the API key you generated in the Before you begin section:

echo [smtp.sendgrid.net]:2525 apikey:[YOUR_API_KEY] » /etc/postfix/sasl_passwd

• Use the postmap utility to generate a .db file:

postmap /etc/postfix/sasl_passwd

• Restart postfix

# /etc/init.d/postfix restart
[ ok ] Restarting postfix (via systemctl): postfix.service.

• install mailutils or mailx

apt-get install mailutils -y

echo “Hello” | mail -s Test106 -r ‘[email protected]’ [email protected]

echo “Hello” | mail -s Test107 –append=“FROM:[email protected]” -r ‘[email protected]’ [email protected]