[Dovecot] Possible to split message store location?

[Pierre]

On 23/sep - 08:17, Patrick Westenberg wrote:
> 
> On Wed, 22 Sep 2010 23:03:58 -0400, Edward Carraro <ednitido at gmail.com>
> wrote:
> 
> > This could lead to a possible bottleneck eventually and we were wondering
> > if
> > it's possible to have dovecot
> > direct x number of users to one message store location while others get
> > their mail on a different mount?
> 
> You can set a different maildir (or home location) in your userdb which
> points to a different mountpoint.

Ok, and then how to get back emails when reading from IMAP, when emails
are split in different places ?