dovecot - Nov 2020 - Migrate mailbox from NFS folder to new NFS folder

Hi everyone,

I need to migrate many user mailboxes from an NFS folder to a new NFS 
folder, both mounted on the same Dovecot server (2.2.27).

Once migrated, users will connect to a new Dovecot server (2.3.4.1).

I would like to know how to use /doveadm backup/ (or sync?) instead of 
/rsync/ as I noted that after migration with rsync I have duplicates and 
some e-mails marked as unread.

What is the correct way to achieve this?

Thanks

Cheers

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> On 10/11/2020 17:59 Claudio Corvino <ccorvino at trustitalia.it>
wrote:
> 
> 
> Hi everyone,
> I need to migrate many user mailboxes from an NFS folder to a new NFS
folder, both mounted on the same Dovecot server (2.2.27).
> Once migrated, users will connect to a new Dovecot server (2.3.4.1).
> I would like to know how to use doveadm backup (or sync?) instead of rsync
as I noted that after migration with rsync I have duplicates and some e-mails
marked as unread.
> What is the correct way to achieve this?
> Thanks
> Cheers
>
https://wiki.dovecot.org/Migration/Dsync

Aki