On 04 Aug 2014, at 10:44, Greg Sullivan <greg.sulli...@sullivang.net> wrote:
> I would like to use a shared IMAP account, with multiple users accessing it > simultaneously. The users would take ownership of messages by first > attempting to MOVE the messages from the Inbox, into their private IMAP > folder, still within the same account. Now, since there will be multiple > users competing for the same messages, I naturally want only ONE of the > simultaneous moves to be successful at a time. > > So far, this isn't working. If I do the move from two clients, > simultaneously, the messages can go to *both *destination folders - > duplicates can result. > > Is it possible to configure Dovecot and/or an IMAP client to behave the way > I want it to? If the answer to this is YES, then I'll offer my config > details. If the answer is NO, the next question is - do any email systems > at all behave the way I want? (I tried a hosted Exchange/OWA service - it > has the same problem) Dovecot doesn't even attempt to do atomic MOVEs. I don't think any server will. If you can change the client code, you could use CONDSTORE instead, which does give atomic STOREs.
