perenecabuto/django-sendmail-backend — pull request #4 by hkage (2014-05-23 08:09:38+00:00)
Title: Pass the recipient list to sendmail to allow BCC

As suggested in the latest version of the snippet https://djangosnippets.org/snippets/1864/ the recipient list has to be passed to sendmail. Using `as_bytes` or `as_string` won't include the blind copy recipient(s). We discovered the bug while using the sendmail backend together with Django Celery mail.