Content-Type: image/jpeg; name="my_cat.jpg" Content-Disposition: attachment; filename="my_cat.jpg" Content-Transfer-Encoding: base64
A Word Document
Content-Type: application/msword; name="February_2012_agenda.doc" Content-Disposition: attachment; filename="February_2012_agenda.doc" Content-Transfer-Encoding: base64
A PDF file
Content-Type: application/pdf; name="This is a test.pdf" Content-Disposition: attachment; filename="This is a test.pdf" Content-Transfer-Encoding: base64
There are a huge number of file types that MIME supports for attachments. I'm not suggesting that all types could be added by email. The ZC team could select just a few typical Office types, PDFs, text files, and the popular image formats.
John M. Whitney