Created attachment 202979 [details] mbsync duplicate mails fix mbsync creates duplication loops when using davmail and moving mails around in folders. The fix is taken from https://sourceforge.net/p/isync/bugs/38/ (comments from the author).
A commit references this bug: Author: ehaupt Date: Tue Mar 19 19:03:03 UTC 2019 New revision: 496289 URL: https://svnweb.freebsd.org/changeset/ports/496289 Log: Provide an upstream patch that fixes an issue with duplication loops when using davmail and moving mails around in folders. PR: 236635 Submitted by: sascha@root-login.org Changes: head/mail/isync/Makefile head/mail/isync/files/patch-src_drv__imap.c
Committed, thanks!