ddeboer/imap — pull request #48 by joker806 (2014-09-01 12:15:41+00:00)
Title: Allow binary-encoded part content

From the e-mail MIME specification (RFC 2045):
> The Content-Transfer-Encoding values "7bit", "8bit", and "binary" all
mean that the identity (i.e. NO) encoding transformation has been
performed.