Hi Farokh, yes, imapsync is great. I tested it myself and it fetched all the mails.
Only Problem: Imapsync will loose the Email-UIDs so all Mail will be downloaded again by the clients after Server switch. dsync is able to presere the Uids. Thanks Christoph On Sun, Jan 10, 2016 at 05:42:53PM -0500, Farokh Irani wrote: > If both servers are using IMAP, maybe imapsync > (http://imapsync.lamiral.info) would be an easier way to go... > > Farokh > ---------------------------------------------------------------------------- > MCF Software...simply dependably engineered > For all your computer and networking needs including hosting solutions > for every need. > Phone: 845-735-0210 > Cell: 914-262-1594 > > > > >Christoph Adomeit <mailto:christoph.adom...@gatworks.de> > >January 8, 2016 at 05:50 > >Hi there, > > > >I have to migrate data out of a very old (debian 4) and buggy cyrus > >mailserver. > >About 40 Users with 200000 Messages each. > > > >Doveadm backup works quite well and gives me most of the mails. About > >every 100.000 Mail > >cannot be exported by cyrus. I do not want to bother about these errors. > >Maybe it is filesystem, maybe it is memory leak, or cyrus bug or whatever. > > > >My problem is that doveadm backup exits with an error if it cannot read a > >mail. > > > > > > > >Is there some way or option to make doveadm backup just skip the errors > >and continue with the next message ? > > > >I want to use doveadm sync because it preserves the uids of the mails. > > > >Imapsync works great but does not prserve uids. > > > >cyrus2dovecot is not an option because it does not work incremental and > >conversion would take far too long. > > > >Any ideas what I can do ? > > > >Thanks > >Christoph -- Christoph Adomeit GATWORKS GmbH Reststrauch 191 41199 Moenchengladbach Sitz: Moenchengladbach Amtsgericht Moenchengladbach, HRB 6303 Geschaeftsfuehrer: Christoph Adomeit, Hans Wilhelm Terstappen christoph.adom...@gatworks.de Internetloesungen vom Feinsten Fon. +49 2166 9149-32 Fax. +49 2166 9149-10