"David.M.Clark" <david at davrom.com> writes:
> Would be great to run both mbox and MailDir at the same time so we can
> do the slow user-by-user process rather than having them all down at
> some point completely ... - might look at running Dovecot on a different
I believe you can do this by using a userdb that can accommodate extra
fields. In particular, supplying a mail field will overwrite the global
mail_location. You can iterate through your users, convert them one at
a time, then update the mail field as you go. At the end, update
mail_location to your new default and remove the extra fields.
https://wiki.dovecot.org/UserDatabase/ExtraFields
Joseph Tam <jtam.home at gmail.com>