MBOX-Line: From arnt at gulbrandsen.priv.no  Tue May 26 10:07:15 2015
To: imap-protocol@u.washington.edu
From: Arnt Gulbrandsen <arnt@gulbrandsen.priv.no>
Date: Fri Jun  8 12:34:55 2018
Subject: [Imap-protocol] COPYUID message order
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Message-ID: <23e30726-1ae2-46da-abba-e50cdf1d3359@gulbrandsen.priv.no>

Bill Shannon writes:
> I'd like to be able to report the status of each message that 
> was requested to be copied.  If one of the messages was not 
> copied for some reason, and so is left out of the returned list 
> of source UIDs, how do I figure out which one that was?  Without 
> a complete map from sequence number to UID, it seems that the 
> COPYUID response code for the simple COPY command may not be 
> sufficient.

True. For that case you'll need to issue "FETCH ... UID" and then "COPY ... 
target" (without waiting). When you have received tagged responses for 
both, you know that your MSN-UID map is contains all the necessary UIDs and 
you can process the COPYUID response code completely.

Arnt