Is atomic MOVING of messages between IMAP folders possible?

[Jochen Bern]

On -10.01.-28163 20:59, Greg Sullivan wrote:
> I must say I am extremely disappointed that intra-account moves are not
> atomic. As far as I can tell, IMAP was designed to allow shared access, so
> in my opinion this operation should be atomic.  Heaven FORBID that I should
> ask for entire conversation moves to be atomic as well. (which is really
> what I want)

How would it be of any use to the passive client that the *operation* is
atomic when (as far as I can see, which admittedly mightn't be much)
there is no way defined in the IMAP protocol to atomically *notify* it
of said change?

IMAP IDLE, for example, may inform it that one message disappeared from
mailbox X and one popped up in mailbox Y - not that these two are
actually the same message, still have the same set of flags set, etc..
That's for the client to find out by specific requests - which already
breaks the atomicity and allows for a race condition between clients.

Regards,
								J. Bern
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