Am 04.08.2014 um 14:00 schrieb Timo Sirainen: > 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.
Internet Message Access Protocol (IMAP) - MOVE Extension http://tools.ietf.org/html/rfc6851 well, both, client and server would need to support it rely on that is unlikely for many years
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