From: Bron Gondwana (no email)
Date: Mon Nov 05 2007 - 18:11:46 EST
On Mon, Nov 05, 2007 at 04:58:59PM +0000, David Carter wrote:
> On Fri, 2 Nov 2007, Ken Murchison wrote:
>
>> I'm getting ready to implement the QRESYNC extension for the upcoming
>> LEMONADE interop.
>>
>> http://www.ietf.org/internet-drafts/draft-ietf-lemonade-reconnect-client-06.txt
>
> Reading the Internet Draft, I'm a little puzzled by:
>
> 4.3. Additional state required on the server
>
> [...]
>
> Also note that if the UIDVALIDITY of the mailbox changes [...], then
> any state associated with expunged messages MUST be deleted as well.
>
> I'm not clear what the motivation is here given that a new UIDvalidity
> forces a full resync from any client: no QRESYNC is possible.
>
> This requirement is likely to be a pain for:
>
>> 1. Leverage delayed expunge which already stores state for expunged
>> messages in cyrus.expunge (up until the records are purged by cyr_expire).
>
> Given that unexpunge assigns a new UIDvalidity to the mailbox.
I think that unexpunge should actually be the same as "COPY" where the
source is the "deleted" record. This updating UIDvalidity is just rude,
especially if you're only unexpunging a couple of messages from a much
bigger mailbox.
SEEN state handling is a pain, but that's always been a pain. I don't
mind too much if an unexpunged message shows up as "unseen" in its
new incarnation.
Bron.
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