An email backend for Django that opens each HTML email sent in a local webbrowser

django_browsable_email_backend.py

from tempfile import NamedTemporaryFile
import webbrowser
from django.core.mail import EmailMultiAlternatives


class BrowsableEmailBackend(BaseEmailBackend):

    def send_messages(self, email_messages):
        for message in email_messages:
            for body, content_type in getattr(message, "alternatives", []):
                if content_type == "text/html":
                    self.open(body)

    def open(self, body):
        temp = NamedTemporaryFile(delete=False)
        temp.write(body)
        temp.close()
        webbrowser.open("file://" + temp.name)


# Usage - settings.py:
# EMAIL_BACKEND = "django_browsable_email_backend.BrowsableEmailBackend"