[Django]-How can I know if a email is sent correctly with Django/Python?

There is no way to check that a mail has actually been received. This is not because of a failing in Django, but a consequence of the way email works.

If you need some form of definite delivery confirmation, you need to use something other than email.

When running unit tests emails are stored as EmailMessage objects in a list at django.core.mail.outbox you can then perform any checks you want in your test class. Below is an example from django’s docs.

from django.core import mail
from django.test import TestCase

class EmailTest(TestCase):
    def test_send_email(self):
        # Send message.
        mail.send_mail('Subject here', 'Here is the message.',
            'from@example.com', ['to@example.com'],
            fail_silently=False)

        # Test that one message has been sent.
        self.assertEqual(len(mail.outbox), 1)

        # Verify that the subject of the first message is correct.
        self.assertEqual(mail.outbox[0].subject, 'Subject here')

Alternatively if you just want to visually check the contents of the email during development you can set the EMAIL_BACKEND to:

EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'

and then look at you console.

or

EMAIL_BACKEND = 'django.core.mail.backends.filebased.EmailBackend'
EMAIL_FILE_PATH = '/tmp/app-messages' # change this to a proper location

then check the file.

This post on integrating Django with Postmark describes how you can follow-up on e-mail delivery.

In case of error, send_mail should raise an exception. The fail_silently argument makes possible to ignore the error. Did you enable this option by mistake?

I hope it helps