Re: [imap5] Designing a new replacement protocol for IMAP

Bron Gondwana <brong@fastmail.fm> Wed, 15 February 2012 18:54 UTC

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Date: Wed, 15 Feb 2012 19:54:03 +0100
From: Bron Gondwana <brong@fastmail.fm>
To: Jan Kundrát <jkt@flaska.net>
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References: <B764BD8C8B6047E659EABBE2@caldav.corp.apple.com> <4F397212.1030107@qbik.com> <20120213210805.GB13029@launde.brong.net> <alpine.LSU.2.00.1202151405550.30682@hermes-2.csi.cam.ac.uk> <1329315552.1444.140661036879893@webmail.messagingengine.com> <4F3BBFA4.8010107@isode.com> <1329316981.8310.140661036883625@webmail.messagingengine.com> <4F3BC7DA.5070803@gulbrandsen.priv.no> <20120215181047.GB13906@launde.brong.net> <4F3BF8B0.50707@flaska.net>
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Cc: imap5@ietf.org
Subject: Re: [imap5] Designing a new replacement protocol for IMAP
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On Wed, Feb 15, 2012 at 07:25:52PM +0100, Jan Kundrát wrote:
> On 02/15/12 19:10, Bron Gondwana wrote:
> > Along with \Recent, which is also magic - it's a read only value where
> > EVERYTHING ELSE in the same space is writable (ACLs permitting), it's
> > defined in a way that makes multi-session a pain.  It's a wart.
> 
> On the other hand, some people (you know, I keep telling myself that I
> cannot possibly be alone in this) use the lack of \Seen to mean "I
> should do something for this mail", which means that we have a lot of
> "unread" messages in our mailboxes. Having a way of automatically
> marking those messages which are *really* fresh arrivals is therefore
> very convenient, and \Recent does exactly that.

Kinda, unless you lose your IMAP connection, or...

In other words, it's a lossy, partial solution - which comes at a
server end penalty of having to WRITE something when a client reads.

> Sure, we can use another flag for this, but having these flags managed
> by the server means that no client has to ever touch it, and therefore
> it will "just work" all the time. That's a pretty big benefit, IMHO.

Except then someone says "but I want to see messages which have not
yet been seen BY THIS DEVICE", so my phone sees things as new even
when I left my desktop logged in and checking for new messages.

Special cases are great when they match your use case, for sure.

> (Yes, I typically run just a single instance of a MUA these days and lug
> my laptop around -- that might explain why this works for me.)

Whereas I work in a couple, and have my phone... so it's pointless
to me.

Bron ( and the management types with their crackb^WiPhones... they want
       something different again )