> On 4 Sep 2018, at 18.45, Rick Romero <r...@havokmon.com> wrote: > https://imapsync.lamiral.info/FAQ.d/FAQ.Duplicates.txt > > Seems to use UIDs so that 'data' isn't lost. > > No it does not. This is different thing. This is about managing duplicates on multiple syncs. Imapsync seems to keep track of UID -> MAIL mapping for server A and UID -> MAIL mapping for server B so that on multiple runs it does not sync the same messages again. However it does not use the same UID -> MAIL for server B as is originally on server A. And that is the problem.
Sami
