MBOX-Line: From iana at apple.com  Mon Dec 10 23:52:34 2012
To: imap-protocol@u.washington.edu
From: Ian Anderson <iana@apple.com>
Date: Fri Jun  8 12:34:49 2018
Subject: [Imap-protocol] RFC 6154 (SPECIAL-USE) and \Important
In-Reply-To: <CABa8R6uiyvqAyHP+Gz89ORYmXigurgPt0xUOUz-gf0d27cXXzQ@mail.gmail.com>
References: <ED32D389-FDA8-4FE0-9041-22FEED83071C@apple.com>
	<CABa8R6uiyvqAyHP+Gz89ORYmXigurgPt0xUOUz-gf0d27cXXzQ@mail.gmail.com>
Message-ID: <78147F1B-B52E-4C3B-A789-C4107E3A6C0C@apple.com>

I kind of like the idea of amending 6154 to include \Important .  6154 already has several Gmail specific mailboxes defined anyway, seems like it might as well add \Important.  Plus it would discourage people from adding their own \Important and then clashing with the established meaning that it already has on Gmail.

Ian

On Dec 10, 2012, at 3:59 PM, Brandon Long <blong@google.com> wrote:

> Its not documented anywhere that I know of.  That folder is used to represent the label assigned to messages which are detected as "important" by our Priority Inbox, and we had folks who use IMAP as an API for Gmail asking for access to that information.
> 
> Its not clear this would ever be a "standard" special-use flag, but I've also seen a bunch of push back against using the X prefix, so we weren't clear on which way to go.
> 
> We could have just exposed it on XLIST which isn't formally defined, though that keeps us on special handling for Gmail.
> 
> We went with adding it to LIST since special-use (and previous extensions) already imply that clients need to be flexible in handling these.  We were worried about that, which is why we created XLIST in the first place... and when we launched special-use, we did break at least one client which hard coded a list of acceptable attributes.
> 
> Brandon
> 
> 
> On Mon, Dec 10, 2012 at 2:54 PM, Ian Anderson <iana@apple.com> wrote:
> I notice that Gmail is including \Important in the result from the LIST command.
> 
> * LIST (\HasNoChildren \Important) "/" "[Gmail]/Important"
> 
> I don?t see that documented in RFC 6154, is that in another RFC?  Or documented anywhere?
> 
> Ian
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