django/django — pull request #1202 by micolous (2013-05-23 08:36:53+00:00)
Title: Ticket 18967: Fix non-standard message/rfc822 base64 encoding issue

django.core.mail.EmailMessage._create_mime_attachment incorrectly encodes message/rfc822 attachments in base64, breaks in Evolution and Thunderbird

https://code.djangoproject.com/ticket/18967