Yesterday support for pluggable e-mail backends has landed in Django's trunk and today I'm happy to announce two e-mail backend implementations to be used with Django-based App Engine applications.

The e-mail backends allow you to use native Django functions for sending e-mails like django.core.mail.send_mail() on App Engine.

To use pluggable e-mail backends you'll have to use a recent version of Django. Support for pluggable e-mail backends was introduced in rev11709 and will be released in Django 1.2.

Using the e-mail backend

The e-mail backends are available as a single package on bitbucket. To check out the most recent sources run:

$ hg clone http://bitbucket.org/andialbrecht/appengine_emailbackends/

or got to the downloads page and grab a zip file.

To use the e-mail backend for App Engine copy the appengine_emailbackend directory to the top-level directory of you App Engine application and add the following line to your settings.py:

EMAIL_BACKEND = 'appengine_emailbackend'

If you prefer asynchronous e-mail delivery use this line in your settings.py instead:

EMAIL_BACKEND = 'appengine_emailbackend.async'

When using the async backend e-mails will not be sent immediately but delivered via a taskqueue.

Running the demo application

There's also a demo application included in this repository. Run this application using

$ dev_appserver.py .

and open http://localhost:8080 in your web browser. Remember to include a current checkout of the Django SVN repository in the top-level directory of the demo application.

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