On Thursday, 17 October 2013 18:00:37 CEST, Mike Cardwell wrote:
God only knows. I've never used Outlook Express and I don't think it's
worth
catering for any more. I'm a web developer and I certainly don't cater
for
IE6 anymore. I imagine having a multipart/alternative at the root rather than a multipart/signed or multipart/encrypted will stop PGP working with
proper
email clients though.

Personally, I wouldn't call such clients "proper", but I'm clearly biased here :).

Confused at what the problem is here. Trojita has a "Show Messages in
Threads" option, so it clearly knows which messages are in reply to
which other messages.

This only works on a single mailbox and relies on a server's functionality. It's common to have sent mail in some other mailbox -> the mapping cannot be done without fully reconstructing it on the client side, and that needs fetching fetching a subset of headers from each and every message. That's expensive.

Sure, it's doable, but it's another feature with a very real performance tax.

Not sure if you misunderstood me here. The email I sent had a "From"
header
of "troj...@lists.grepular.com" which is my own email address (not the
lists), yet my public key has no knowledge of
"troj...@lists.grepular.com",
and that is perfectly valid. I just want to make sure you don't add such
a restriction.

Ah, my bad -- I assumed you were talking about the Sender and From fields.

Cool. Then just make sure it handles the case where different keys are
used
to sign/encrypt different parts of an email ;)

I expect that any widget showing the encryption state to the user will have to precisely indicate what parts are signed and with what key, yes.

Cheers,
Jan

--
Trojitá, a fast Qt IMAP e-mail client -- http://trojita.flaska.net/

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