Re: Registering $hasAttachment & $hasNoAttachment

On Mon, Dec 04, 2017 at 11:21:47 +1100, Neil Jenkins wrote:
> On Mon, 4 Dec 2017, at 10:58 AM, Josef 'Jeff' Sipek wrote:
> > IMAP keyword name: $hasAttachment
> 
> We're using $HasAttachment (capital H) at FastMail. Please can we
> standardise on this capitalisation? This is consistent with the other
> IMAP keyword registrations too.

Fine by me.

> > Note:
> > $hasAttachment and $hasNoAttachment are mutually exclusive.  If
> > more than> one of them is set for a message, the email client MUST treat
> > this as if> neither of them is set and SHOULD remove both of them from the IMAP
> > server.
> 
> Surely it SHOULD remove the one that is incorrect rather than both?

I basically copied the $Junk/$NotJunk mutual exclusion semantics.  It makes
more sense to do what you suggest - and since it is a SHOULD, the client can
just nuke both keywords (useful if the client doesn't have the whole message
downloaded but finds an inconsistency in keywords).

Jeff.

-- 
Research, n.:
  Consider Columbus:
    He didn't know where he was going.
    When he got there he didn't know where he was.
    When he got back he didn't know where he had been.
    And he did it all on someone else's money.

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