[Dovecot] Mixing MBOX and MAILDIR

[Romer Ventura]

Hello,

    I have about 100 mboxes, a few with a lot of mails and others with a few
mails. I have configured dovecot to use maildir as mail format, but I would
like to give users the ability to access their old email located in their
old mbox. So all the new mail would be in the ~/Maildir/ and their old or
archived email in /home/vmail/mboxmail/%Ln

    How can I add a namespace to achieve my goal...?
namespace private {
  separator = /
  hidden = yes
  prefix = "#mbox/"
  location = mbox:/home/vmail/mboxmail/%Ln/
}
 
    Like that...? 

Thanks for any inputs...