It was a decision we have not been involved in.  That's it.
We have to do what we are paid for.
But I did not want to start a meta-discussion.  I was looking for ideas and technical experience.
(And I agree with Justina that maildir seems to be much more manageable.  It is a well-known format.)
 
 
Gesendet: Samstag, 13. August 2022 um 21:08 Uhr
Von: "justina colmena ~biz" <justina@colmena.biz>
An: dovecot@dovecot.org
Betreff: RE: convert mdbox to maildir
*My* inbox gets filled with thousands of emails, more or less commercial content and trivial notifications from shopping online, and postfix crashes and will not accept new messages if the file "/var/mail/justina" becomes too large.

Configuring postfix to deliver the mail to "~/Maildir" solved that problem.

I still need to configure a sieve or a filter or some nicer mechanism to clear out messages that are either outright spam or too old or no longer of interest to me.
 
On August 13, 2022 10:00:36 AM AKDT, Marc <marc@f1-outsourcing.eu> wrote:
 

We need to move all users from one (pretty old) installation of dovecot
to a new one.
The old one uses mdbox for users' mailboxes and maildir for
shared/public mailboxes.
The new one must be maildir only.

why did you decide to move to maildir?


 
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.