Re: [Imap-protocol] RFC2180 expunges on shared mailboxes

Hi David,

On 06/05/2015 11:42, David Harris wrote:
> Just wondering...
>
> Of the four possible approaches outlined in RFC2180 section 4 for handling
> EXPUNGE commands on shared (multiply-accessed) mailboxes, is there any one
> that has become more broadly acceptable than any other?
>
> For historical reasons, I have always used the approach in 4.1.4 (fail the expunge
> while the mailbox is shared) because in the early days I found that there were
> clients that would become confused by the EXPUNGE responses to their NOOP
> commands and end up subsequently deleting messages they didn't intend to
> delete, which seemed like a much more serious problem than simply failing a
> command.
>
> Unfortunately, with the rise of (often brain-dead) small-device IMAP
> implementations, I'm now getting customers complaining that the 4.1.4 approach
> causes too many problems for them, but I don't want to make a unilateral change if
> the other approaches are just as bad.
I think 4.1.2 and 4.1.1 are my personal favourites. Isode implemented 
4.1.2.
> Any general observations on this?
>
> Cheers!
>
> -- David --
>
> ------------------ David Harris -+- Pegasus Mail ----------------------
> Box 5451, Dunedin, New Zealand | e-mail: [email protected]
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