Auto-duplicate mailstore?

[@lbutlr]

On 12 Jul 2019, at 16:15, @lbutlr via dovecot <dovecot at dovecot.org> wrote:
> I am looking for something that is similar to replication, but without a second server. I currently have a system setup using postfix bcc to write out copies of all email, but what I would rather do is just have all the mail written to /usr/local/virtual/%u/Maildir and also to /backup/usr/local/virtual/%u/Maildir (for example) as this will make restoring messages much simpler.

Note: doveadm backup is not a solution because it replicates the current state of the mailstore, what I need is a separate backup that is not altered by user’s screwing things up or accidentally deleting mail.

Certainly, a way to expire older mails from the backup would be great, but the crucial “feature” is that the backup doesn’t delete any mails based on user action.



-- 
And I was grounded while you filled the skies I was dumbfounded by
truth; you cut through lies