Hello,

the Webside says report bug to the Mailing List, but no reactions so far.

This Bug is really easy to reproduce.. just create a folder like an email address "spam@mydom.net" and run a dsync backup.
It failes every time when it comes to that folder, if I delete that folder it runs smoothly

Hans

Am So., 26. Jan. 2020 um 05:25 Uhr schrieb <spamvoll@googlemail.com>:
Hello,

dovecot version: 2.3.9.2

When I use dsync:
/usr/bin/dsync -v -D -o plugin/quota= -f -u my@email.dom backup maildir:/tmp/mailbackup/Maildir
it always stops when it comes to a folder with an "@" in its name.
Error Message:
Warning: Mailbox changes caused a desync. You may want to run dsync again: Remote lost mailbox GUID (maybe it was just deleted?)

I dont know if it makes a difference, but my dovecot uses mdbox and the backup export is maildir.

Hans