--mkGAOmWzlLaPNjkDQ57CNA9mUc6uoe1JMSRI
Content-Disposition: form-data; name="mtdata"; filename="filename"
Content-Type: application/octet-stream
A whole lot of binary data

--mkGAOmWzlLaPNjkDQ57CNA9mUc6uoe1JMSRI
Content-Disposition: form-data; name="email"

email address
--mkGAOmWzlLaPNjkDQ57CNA9mUc6uoe1JMSRI
Content-Disposition: form-data; name="mtfilename"

file name
--mkGAOmWzlLaPNjkDQ57CNA9mUc6uoe1JMSRI--