From: Daniel Schoepe <daniel.schoepe@googlemail.com>
To: Sebastian Spaeth <Sebastian@sspaeth.de>, Sander Boer <sanderboer@mauc.nl>
Subject: Re: notmuch Digest, Vol 20, Issue 57
In-Reply-To: <8762n9x88f.fsf@SSpaeth.de>
References: <mailman.5.1309146869.12973.notmuch@notmuchmail.org>
	<cuozkl367o2.fsf@mauc.nl> <87wrg5905c.fsf@yoom.home.cworth.org>
	<87wrg3pyra.fsf@SSpaeth.de>
	<CACEMMeewjcM1Vo=uq_wrhe_5Z+OESsJD_29-D7z5JxT6Mvq7qA@mail.gmail.com>
	<87fwmjqmav.fsf@tredergarh.home.box> <8762n9x88f.fsf@SSpaeth.de>
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Date: Mon, 11 Jul 2011 15:33:50 +0200
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On Mon, 11 Jul 2011 15:22:24 +0200, Sebastian Spaeth <Sebastian@sspaeth.de>=
 wrote:
> > Support for tags is mentioned in the RFC for IMAP, but it's optional. As
> > far as I know, must servers today support them though.
>=20
> I can't speak for Gmail, but all major servers, ie Cyrus, Dovecot, and
> even Exchange seem to handle tags just fine.

I just realized that this was a quite misleading typo, that should have
read "As far as I know, _most_ servers today support them though".=20

I'd be very suprised if Gmail didn't support them. And even if not, one
could work around that by having a hypothetical tag synchroniser handle
Gmail differently and use their tagging mechanism:

http://code.google.com/apis/gmail/imap/#x-gm-labels

This would also have the added benefit of notmuch tags showing up in the
other gmail-tag-aware applications, like the web-interface.

Another issue brought up by DraX on IRC is that IMAP keywords don't
handle unicode. (Although the RFC specifies that every character except
some excluded special characters are allowed, so I guess it's
implementation-dependent).

I think the best way to go would be to extend both maildir and
offlineimap somehow to store tags and then store them as IMAP keywords /
gmail-labels in the case of Gmail on the server.

Cheers,
Daniel

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