You will be aware of the recent threads on apps-discuss about MIME types
The threads are on PPTX and DOCX, that is, file name extensions,
not MIME types, which demonstrates that MIME was not necessary
and uuencode is just enough.
If this were not true, then I believe that something such as
text/plain would indeed be the basis of our discussion here,
The MIME type of choice, other than text/plain, is
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