dovecot - Jan 2022 - doveadm backup : Warning: Deleting mailbox GUID= is missing locally

Hi,

As per the docs (https://wiki.dovecot.org/Tools/Doveadm/Sync) I'm presently
running doveadm backup multiple times with a view to eventual server migration.

I am seeing messages such as this:
Warning: Deleting mailbox 'Junk': UID=1826 GUID= is missing locally

Is it anything to worry about ? If so, how should I be dealing with it.

I also have a further question. It is not clear from the docs what the role of
the "-R" flag is in relation to "doveadm backup" ?  Surely
by definition backup = remote -> local ?

Thanks !

Laura

> On 27. Jan 2022, at 16.27, Laura Smith <n5d9xq3ti233xiyif2vp at
protonmail.ch> wrote:
> 
> Hi,
> 
> As per the docs (https://wiki.dovecot.org/Tools/Doveadm/Sync) I'm
presently running doveadm backup multiple times with a view to eventual server
migration.
> 
> I am seeing messages such as this:
> Warning: Deleting mailbox 'Junk': UID=1826 GUID= is missing locally

this is probably a bug of some sort. Basically just means that Junk is resynced
completely and not just delta.
> 
> I also have a further question. It is not clear from the docs what the role
of the "-R" flag is in relation to "doveadm backup" ? 
Surely by definition backup = remote -> local ?
?R means reverse sync. Reverse direction.

Sami