[Exim] Routers vs Transports with Virtual Accounts and OpenL…

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Szerző: Jonathan Vanasco
Dátum:  
Címzett: exim-users
Tárgy: [Exim] Routers vs Transports with Virtual Accounts and OpenLDAP
In a pathetic attempt to build a scalable, reliable mail system
consisting only of virtual accounts we decided on the following:
        OpenLDAP     (www.openldap.org)     database backend to manage accounts
        Exim        (www.exim.org)        MTA for routing incoming mail, sending outgoing
        Courier-Imap     (www.courier-mta.org)    Imap Daemon for mail retrieval


In a perfect world:
    LDAP structure organized as trees for each FQDN - a@??? a@???
a@??? are all different users/maildirs/accounts on the same machine


    On receipt of email:
        Exim queries OpenLDAP -- Does user exist?  If not, reject.  If so...
        Exim parses address into format


Well, I keep running into a problem -- or at least what i think is a
problem.

After running the router, exim delivers messages NOT to the directory
specified in the Transport, but to the directory returned by the
router. I noticed this while testing some Courier compatibility issues
with the setup, when i tried changing the delivery destinations -- it
didn't work. ( i did restart exim -- and threw in some other changes
which took, just to test this).

Example: with the configurations below, mail goes into
/var/spool/mail/mastersofbranding.com/j/jvanasco/cur:new:tmp - not
Maildir/cur:new:tmp

Am I completely wrong about the way this behaves? Shouldn't the
"maildir" returned by the router simply make the router pass, and
actual delivery location be dictated by the transport?

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    Sample /usr/exim/configure
{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
#                      ROUTERS CONFIGURATION                         #
begin routers
virtuals:
   driver = redirect
   allow_fail
   allow_defer
   file_transport        = virtuals_maildir_delivery
   domains                       = +local_domains
   hide data         = ${lookup ldap { \


user="cn=Manager,dc=redivi,dc=com" pass=secret \

ldap:///ou=Email,o=mobwire,dc=redivi,dc=com\

         ?maildir\


         ?sub\


         ?mobEmailAt=${quote_ldap:$local_part}\


         ?fqdn=${quote_ldap:$domain}\


         } \


{$value} \

fail \
                                                                 }


#                      TRANSPORTS CONFIGURATION                      #
begin transports
virtuals_maildir_delivery:
   driver                        = appendfile
   directory =
/var/mail/$domain/${substr_0_1:$local_part}/$local_part/Maildir
   create_directory
   directory_mode = 0775
   delivery_date_add
   envelope_to_add
   return_path_add
   maildir_format
   group = mail
   mode = 0660


}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
    Sample email record .ldiff
{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
dn: mobEmailAt=jvanasco,
fqdn=mastersofbranding.com,ou=Email,o=mobwire,dc=redivi,dc=com
objectClass: MOBEmailRecord
mobEmailAt: jvanasco
mobPerson: Jonathan Vanasco
mail: jvanasco@???
maildir: /var/spool/mail/mastersofbranding.com/j/jvanasco/
mobPass: test