On 01/05/2024 04:39 EEST David Mehler via dovecot
<dovecot@dovecot.org> wrote:
Hello,
I've got a task to migrate a Dovecot mailstore, mailboxes, public
folders, etc from an older server (it runs Dovecot 2.2.x) to a new
server (running Dovecot 2.3.x). At the same time I'm needing to
change
mailbox storage formats, going from Mbox (on old server) to Maildir
(on
new server). I'm not sure if any of the mailboxes are compressed with
zlib or encrypted, there's a lot of them, is there a way to find out
compression or encryption and decompress/decrypt them prior to
migration?
Suggestions welcome.
Thanks.
Dave.
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We have a migration guide at https://doc.dovecot.org/admin_manual/
migrating_mailboxes/
This should help you out. If mailboxes are compressed/encrypted and they work
today, no need to do anything about them.
Important thing is to try out with test account(s) first.
Aki
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