Hi,

qmail-ldap is designed for exactly the case that you are telling. It is main/basic feature of qmail-ldap.
You can choose the account's mailhost manually .
You can distribute one domains users to many server. Did you read lwq ldap article http://www.lifewithqmail.org/ldap/ and http://www.nrg4u.com/qmail/QLDAPINSTALL
To achieve this here is the key parts:

 * install qmail-ldap on all servers & configure qmqp protocol in
   addition to smtp

 * use the same LDAP server settings (control/ldapserver,ldaplogin etc
   settings).
 * add domain.com to control/locals ,control/rcpthosts file on all servers
 * create user accounts with different mailhost values on ldap (you can
   use any ldap browser tool or phpldapadmin)




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On 15.11.2011 23:19, Khodayar Doustar wrote:
Hi all,

I'm planning to install lwq with ldap on a distributed mail system, separated servers for webmail(roundcube), mail gateway (lwq), directory and authentication server (ldap) and mail hubs(lwq), each one on separated server(s).

All is OK with lwq but the fact that I'm going to host just one domain on more than on mail hub server, it means that mailboxes of some users will be stored in hub1.domain.com <http://hub1.domain.com> server and some other users will be stored in hub2.domain.com <http://hub2.domain.com>.

I just want to know if that's possible, is ldap capable of handling such a system? For example could I have such information for users:

mailname: us...@domain.com <mailto:us...@domain.com>
mailhost: hub1.domain.com <http://hub1.domain.com>
mailpath: /var/qmail/domains/domain.com/user1 <http://domain.com/user1>

and

mailname: us...@domain.com <mailto:us...@domain.com>
mailhost: hub2.domain.com <http://hub2.domain.com>
mailpath: /var/qmail/domains/domain.com/user2 <http://domain.com/user2>

and how the user creation will take place? Is that possible to choose between servers the user is going to be created on? Or could it be distributed between servers?

Any hint would be greatly appreciated since I couldn't find anything about this case on the web.

Warm regards,
Khodayar Doustar

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