How to send email via Django?
Send the email to a real SMTP server. If you don't want to set up your own then you can find companies that will run one for you, such as Google themselves.
I use Gmail as my SMTP server for Django. Much easier than dealing with postfix or whatever other server. I'm not in the business of managing email servers.
In settings.py:
EMAIL_USE_TLS = True
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_PORT = 587
EMAIL_HOST_USER = '[email protected]'
EMAIL_HOST_PASSWORD = 'password'
NOTE: In 2016 Gmail is not allowing this anymore by default. You can either use an external service like Sendgrid, or you can follow this tutorial from Google to reduce security but allow this option: https://support.google.com/accounts/answer/6010255