On 08 May 2015, at 18:24, Panayiotis Fafakos <p...@wisdomsoftware.net> wrote: > > Do we have a way to keep the user \Seen flags in public folders > when an email is moved in another folder? > > Sample test to reproduce: > Step a - UserA and UserB have both read the email in PublicFolderA. > Step b - UserA moves the email to PublicFolderB. UserA still sees the email > as read (with the \Seen flag), this is expected behaviour and we are ok with > this. > Step c - UserB sees the email in PublicFolderB as an unread message!? He is > puzzled since he has already read this message and asks why this is > happening. Can we correct this behaviour?
No, there's no way to fix this without major changes to how Dovecot works. Per-user seen flags are stored in private per-user index files. When user A moves mail to another folder the shared index and user A's index are updated to copy the flags. User A doesn't know what other users might have the folder accessible (and especially both source and destination folder). Even if it did know, now moving a mail might involve updating a lot of indexes every time a mail is moved, which is way too slow. One possible future solution would be to move more towards GMail-like labels instead of folders. We have beginnings of such code. I'm not sure yet how that could be made to work with shared folders.
