* Sami Ketola schrieb am 23.01.16 um 23:27 Uhr: > > > On 23/01/16 15:33, Robert Schetterer wrote: > > for multiple advanced imap settings at migration you might use > > imapsync not dsync Best Regards MfG Robert Schetterer > Sure but imapsync does not preserve message UID's which means that users > end up redownloading all their messages or message/UID mismatches will > happen.
IIRC that is not true. Some years ago I migrated a server to dovecot and managed to do it with proper UID migration. No clients were required to re-download Mail. Nor over IMAP neither POP3. -Marc -- [*] sys4 AG http://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein