On 30.08.2016 10:44, Gandalf Corvotempesta wrote: > Hi to all > I have a very old dovecot server (1.2.15) with about 195GB used and > 1081 email accounts. > I have to move this server to another one with contextual dovecot upgrade. > > Anyone did this before? Any advice? Obviously, existing emails *must > not* be downloaded twice by existing clients (outlook, thunderbird, > ...) > > I have no access to customer's clients, only to my server.
Hi! See http://wiki2.dovecot.org/Upgrading Aki Tuomi Dovecot oy