RE: [Evolution] Synchronising mailboxes

[Jeffrey Stedfast <fejj novell com>]

On Wed, 2006-05-31 at 16:00 +1200, Eustace, Glen wrote:
>  > Evo deletes messages from the server when you expunge them. Otherwise
> > they're just marked for deletion so you can undelete them if you want.
> > This is how IMAP is supposed to work. IMAP is explicitly *not* meant
> to
> > keep multiple clients in synch with each other.
>
> If my understanding of how IMAP works, when one deletes (not expunges)
> or replies to a message, the message on the server gets its 'flags'
> updated.

yes

>  This change in state of a message is not reflected on other Evo
> clients but is on OutLook, have MS got it wrong again ?  If so, it would
> be great if Evo had the same bug/behaviour.

Different IMAP server implementations are better/worse than others as
far as notifying all other clients of flag updates.

Most IMAP servers don't tell a client that the flags have been updated
on a particular message until the client explicitly asks for flag
updates[1] or at the very least explicitly asks for other info about a
particular message[2].

1. explicitly asking for flag updates is expensive, hence we don't do it
(unless you change folders and I think send&receive will force a flag
rescan too?)

2. i.e. if the user clicks a message, Evolution will send a FETCH
request for that particular message - if the flags have been updated by
another client, the IMAP server will tell us.

> If a message has been deleted by Client A running evo, I would like it
> to dissappear (be hidden) the next time Evo checks for messages. At the
> moment the check would seem to only be for new messages rather than
> changes in state of old ones.

it does both.

> On the assumption that others don't see the same behaviour, the IMAP
> server is dovecot running on FC4.
>
> Glen.
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