edx/edx-platform — pull request #3160 by symbolist (2014-04-01 15:58:42+00:00)
Title: Set content-transfer encoding for email messages to base64.

Django (version <= 1.6) globally overrides python's default
Content-Transfer-Encoding for UTF-8 messages from base64 to
7bit. We set it to base64 again otherwise mail servers add
newlines and exclamation marks when a line is longer than
989 characters.

LMS-1466