Dovecot: Mails flagged as read get flagged as unread

[Steffen Kaiser]

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On Tue, 6 Dec 2016, plataleas wrote:

> We experience some unexpected behavior with dovecot. It happens that
> emails marked as read get marked as unread (MUA is Thunderbird on port
> 143). Unfortunately this happens randomly, reproducing this issue is
> difficult. We could not find any pattern, it happens rarely.

does your user(s) access these mailboxes from two or more clients 
simultaneously - either from the same account or as shared mailboxes?

- -- 
Steffen Kaiser
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