On 3.4.2013, at 18.42, Thomas Hummel <hum...@pasteur.fr> wrote: > I'm using dovecot-2.1.15 with Maildir mailboxes located on an NFS filer. > Postfix is used to deliver mail through procmail ("mailbox_command) as LDA. > > Our team has bought another filer and everything is meant to go on it, so > we're > planning to migrate those mailboxes to the new filer. .. > I was wondering if such a migration could be done differently in order to be > seamless to the user : > > - for the postfix part, it would be easy, I guess, to create a new service > (and > a new transport map using this service) to deliver to the new location > > - but for the imap part, I'm not sure if it can be done. My guess is that, if > feasible, it would involve some namespace settings and a dsync copy but I > cannot figure out how exactly.
http://wiki2.dovecot.org/Tools/Dsync#example_converting works for moving mailboxes as well as converting. It works even while procmail is used to deliver mails.