thanks for the info pat. i was more concerned with the exim configuration. i
never gave too much thought to the ldap schema with the email address to
forward to. in my configuration i want the mail to fail if the ldap query
fails for users in the virtual domain as i don't want to deal with having
courier set up on the mail hub.; mails to the currently hubbed domain should
always make it through exim and be handled by my existing mail server.
thanks for the starting point.
jdm
----- Original Message -----
From: "Pat Hastings" <pat.hastings@???>
To: "'Jason Michaelson'" <jdm@???>; <exim-users@???>
Sent: Thursday, May 25, 2006 4:38 PM
Subject: Re: [exim] exim + openldap + hubbed domain + virtual domain
> We have just done a very similar thing.
>
> We used the authlib.schema from courier as our base schema slightly
> modifying it to add fields such as forward to hold the user's forwarding
> information.
>
> Some good examples are:
>
> http://www.bastard.net/~kos/mailrouter/
> http://wanderingbarque.com/howtos/mailserver/mailserver.html
>
> Both offer different ways of doing it but should give you a good idea
> for designing your schema.
>
> For us we created an organization called email and underneath that we
> created an organization for each domain.
>
> Eg: o=domain1.example,o=email,dc=myhosting,dc=example
> o=domain2.example,o=email,dc=myhosting,dc=example
>
> we the abused the postal code field of organization to hold the ip
> address of the server email should be forwarded on to. To make sure that
> only email for valid users was passed on we then set up a
> courierMailAccount entry for each user in the ldap.
>
> Eg:
> mail=me@???,o=domain1.example,o=email,dc=myhosting,dc=exampl
> e
> mail=you@???,o=domain1.example,o=email,dc=myhosting,dc=examp
> le
>
> and finally used a manualroute redirector from exim to direct the mail
> to the right place:
>
> hubbed_hosts:
> debug_print = "R: hubbed_hosts for $domain"
> driver = manualroute
> route_data = ${lookup\
> ldap{ldap://LDAPSERVER/o=$domain,LDAPBASE?postalcode}}
> transport = remote_smtp
> condition = ${lookup\
> ldap{ldap://LDAPSERVER/o=$domain,LDAPBASE?mail?sub?\
> (mail=$local_part@$domain)} {yes} {no}}
> no_more
>
>
> nb LDAPSSERVER = ipaddress
> LDAPBASE = o=email,dc=myhosting,dc=example
>
> Probably better solutions out there but the above should be a start for
> you.
>
> Pat
>
> -----Original Message-----
> From: exim-users-bounces@??? [mailto:exim-users-bounces@exim.org]
> On Behalf Of Jason Michaelson
> Sent: 25 May 2006 21:42
> To: exim-users@???
> Subject: [exim] exim + openldap + hubbed domain + virtual domain
>
> Right now, I've got exim set up as a mail hub for one domain. it accepts
>
> mail externally and relays it internally. I'm looking to add mail
> forwarding
> through an LDAP lookup for a second domain that I have for other users.
> Basically I want my exim setup to send all mail for domain a.org to the
> server pointed to by my internal mx records, while looking up email
> destined
> for people at the b.com domain in the ldap database and redirecting the
> mail
> to them. My users of b.com email addresses will have a php front end to
> manage their user name, real email address, and password in the ldap
> database.
>
> Has anyone out there ever done this sort of thing? I'm looking for
> recommendations on which ldap schema(s) to use and how to configure the
> exim
> drivers to use them.
>
> thanks
>
> jdm
>
>
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