On Mon, Jul 24, 2017 at 08:39:36AM +0300, Aki Tuomi wrote: > Do you have users accessing the files concurrently from more than one > dovecot instance at a time?
Yes. Apparently it is fairly common behavior for some IMAP clients to open up multiple connections to the same mailbox. Some times the multiple accesses came from different servers (stand alone IMAP client and a webmail system), but there is corruption even when all the accesses are going through the same server. (Yes, we need a director. I am working on integrating that into our network.) -- Bruce Guenter <br...@untroubled.org> http://untroubled.org/
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