[GTALUG] Vaccination Receipts on Linux

[D. Hugh Redelmeier]

The Ontario Governement emailed us Vaccination Receipts shortly after we 
were vaccinated.

As of Sept 22, we will need to show them some places if we want access.

When I go back to that email, I find that it is defective.  You cannot 
read the PDF from my MUA (Alpine on Linux), and I suspect that this is 
true for any Linux or UNIX MUA.  Perhaps also for Apple MUAs.

The reason is that the PDF is sent as an attachment, with the wrong type 
specified in the attachment's headers:

	Content-Transfer-Encoding: base64
	Content-Type: text/plain;charset=utf-8
	Content-Disposition: attachment;filename=Dose_Admin_...pdf"

On POSIX systems, attachments with Content-Type "text", have CR LF 
sequences replaced by NL.

I was able to make it work by manually editing my mailbox, changing the 
Content-Type header to:

	Content-Type: application/pdf