MBOX-Line: From tjs at psaux.com  Fri Jun 11 01:02:51 2010
To: imap-protocol@u.washington.edu
From: Tim Showalter <tjs@psaux.com>
Date: Fri Jun  8 12:34:43 2018
Subject: [Imap-protocol] IMAP MOVE extension
In-Reply-To: <4C11EC3F.7030101@gulbrandsen.priv.no>
References: <201006110854.37969.witold.krecicki@firma.o2.pl>
	<4C11E96E.7080502@gulbrandsen.priv.no> <4C11EBE9.5070004@psaux.com>
	<4C11EC3F.7030101@gulbrandsen.priv.no>
Message-ID: <4C11EDAB.90403@psaux.com>

On 6/11/10 12:56 AM, Arnt Gulbrandsen wrote:

> Why? Atomicity or something else?

It enables certain optimizations.  Having one message in two folders at 
the same time is not possible on our back end, so COPY is expensive, but 
moving a message from one folder to another can be done cheaply.

Tim


