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From: Simon Josefsson <jas@extundo.com>
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Subject: Re: Move messages while offline using registry?
Date: Sat, 08 Feb 2003 16:45:41 +0100
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Frank Schmitt <usereplyto@Frank-Schmitt.net> writes:

> kai.grossjohann@uni-duisburg.de (Kai Großjohann) writes:
>
>> Hm.  I wonder if it could be easier to implement a backend that stores
>> messages by their message id and that maintains a mapping between
>> numbers and ids.  Then the agent could be changed to use that backend.
>> Then articles could be moved while offline.  No, it doesn't really
>> sound easier.  Maybe it is better to stick with the old article
>> number approach.
>
> Would this mean, I can read news at different places from different
> servers and Gnus still knows which have been read, answered etc as long
> as I copy newsrc.eld and newsrc?
>
> If yes, this would be extremely cool.

This should already work for nnimap, and for nnml if you copy the
.marks file and for nnfolder if you copy the .mrk file.  It was
possible before too if you copied the .newsrc.eld, but that file
contains other stuff as well so it wasn't as flexible.  Assuming I
didn't misunderstand something here.