[Dovecot] 2 users database on same LDAP with different mail location

[list at grootstyr.eu]

On Tue, Feb 25, 2014 at 01:29:37PM +0100, list at grootstyr.eu wrote:
> On Tue, Feb 25, 2014 at 11:42:33AM +0100, Francesco wrote:
> > Hello,
> > i know i know, i'm getting annoying but appearently i always come up
> > with weird ideas and i cant seem to accomplish such a task.
> > 
> > the scenario is that i have an LDAP server with a bunch of users.
> > some of them are in a specific OU, and i'd like to define for all these
> > users belonging to this OU an alternative mail location/storage.
> > 
> > in details for all the users i'd like to use maildir storage in a
> > directory, while for the users belonging to a specific OU i'd like to
> > use dbox with an alternative storage attached.
> > 
> > so i created 2 userdb like this:
> > 
> > userdb {
> >   driver = ldap
> >   args = /etc/dovecot/dovecot-ldap-maildir.conf.ext
> > }
> > 
> > userdb {
> >   driver = ldap
> >   args = /etc/dovecot/dovecot-ldap-dbox.conf.ext
> > }
> > 
> > and then defined these 2 args files:
> > maildir:
> > 
> > hosts = localhost
> > dn = CN=ldapadmin,OU=administrators,DC=plutone,DC=local
> > dnpass = <password>
> > auth_bind = yes
> > ldap_version = 3
> > base = DC=plutone,DC=local
> > user_attrs = sAMAccountName=home=/var/vmail/%$
> > 
> > dbox:
> > 
> > hosts = localhost
> > dn = CN=ldapadmin,OU=administrators,DC=plutone,DC=local
> > dnpass = <password>
> > auth_bind = yes
> > ldap_version = 3
> > base = OU=dboxusers,OU=lowpriority,DC=plutone,DC=local
> > user_attrs = sAMAccountName=home=/var/local_dbox/%$,
> > =mail=dbox:/var/local_dbox/%$:ALT=/var/iscsi_dbox/%$
> > user_filter = (&(ObjectClass=person)(mail=%u))
> > 
> > 
> > yet it doesn't matter how hard i try if i send an email to a user
> > belonging to the dboxusers OU i still have the user to be addressed to
> > the maildir storage in /var/vmail
> > 
> > am i missing something?
> > 
> > Thanks
> > Francesco
> 
> You can use LDAP to search for an alternative mail attribute, and specify a default location using 
> mail_location. In your example; mail_location = /var/vmail/%u. Then use one LDAP config file to override the 
> mailbox location if the LDAP database specifies a maildir location.
> 
> By the way, aren't userdb's searched sequentially? Try switching those userdb's to make the one with the group 
> lookup go first. LDAP users will always match the userdb without group lookup.
> 
> 	Matthijs

An addition to my own comment, put the group lookup userdb first, and add skip = found to the second userdb. 
This way it will search the group userdb first and if it found the user, so when it is in the group, don't 
search the second userdb and use the answer from the first userdb.

	Matthijs