When I move (copy and delete) messages between shared folders, the (\Answered) and (\Flagged) flags are preserved, but the (\Seen) flag seems to be removed.
The user doing the moving is some housekeeping software, and is not the same userid as the user which has examined the email. Both of those users have 's' and 'w' rights on both of the folders concerned. My client is the perl module Mail::IMAPClient. Is this meant to happen?