migrate Maildir to mdbox

[Aki Tuomi]

mbox is not recommended for new setups unless you have very good reason to do so. 

Use maildir or sdbox.

Aki

> On May 2, 2017 at 5:09 PM Michael Segel <dovecot_mjs at hotmail.com> wrote:
> 
> 
> Silly question… 
> Which is preferred? MailDir or Mbox?  (directory vs flat file) 
> 
> How would you do this when migrating from an old server to a new one? 
> 
> Thx
> 
> -Mike
> 
> > On May 2, 2017, at 1:58 AM, Aki Tuomi <aki.tuomi at dovecot.fi> wrote:
> > 
> > Assuming your maildir path is /path/to/mail/Maildir You could do it like this:
> > 
> > mail_home=/path/to/mail
> > mail_location=mdbox:~/Mail
> > 
> > Then run
> > 
> > doveadm import -A -s maildir:~/Maildir "" ALL
> > 
> > mdbox should end up in
> > 
> > /path/to/mail/Mail
> > 
> > Please try it with doveadm import -u username first and keep backups, naturally.
> > 
> > Aki
> > 
> > On 2017-05-02 09:51, Tamas Papp wrote:
> >> Hi,
> >> 
> >> I replaced HDDs in my home server and reinstalled the OS (Ubuntu
> >> 17.04). Since I had some time I reviewed my Dovecot configuration and
> >> changed a couple of things, including mailbox format.
> >> 
> >> Now I would like to migrate e-mail (about 20G -- I use this server as an
> >> e-mail archive). The Maildir is available on the (old) hard disk.  The
> >> new dovecot is running. What should I use? Would mbsync work? I would
> >> prefer a solution that does not mess up the UUIDs, but I can live with
> >> that too.
> >> 
> >> $ dovecot --version
> >> 2.2.27 (c0f36b0)
> >> 
> >> Incidentally, would you recommend sdbox or mdbox? Lots of e-mails, many
> >> of them have large attachments.
> >> 
> >> best,
> >> 
> >> Tamas