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From: Michael Heerdegen <michael_heerdegen@web.de>
Subject: Re: Does Gnus read and sync the read with IMAP?
Date: Fri, 20 Oct 2023 02:57:24 +0200
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Bob Newell <bobnewell@bobnewell.net> writes:

> The thing is, your /client/ may show them as read but may or may not
> have uploaded that "being read" information to the IMAP server.  Do
> try deliberately closing the client on your phone and see if it helps.
> You have to be sure (at least on Android) to actually exit the client
> and not just switch to another app.

Does Gnus update the "being read" information from the server also for
messages it already knows (i.e., has seen in a prior session)?

Michael.