[Email-SIG] Generating zipped or gzipped attachment with email package?

[R. David Murray]

On Thu, 21 May 2009 at 13:08, skip at pobox.com wrote:
> Alas, then I lose the notion that the file is actually text/csv.  For
> example, how would Outlook or Thunderbird know to open such a file in Excel
> or OpenOffice Calc?

By using whatever heuristics it uses for such a file on disk (including
the filename extension), I would imagine.  Suboptimal, but lacking
a compression standard for email-MIME, it is probably the best you can do.

(At least, I couldn't find any mention of a standard for compression
other than a note about its non-existence in the rather old comp.mail.mime
FAQ.)

--David