Dionte Wilson wrote:
Hi all.
I was wondering if Exim can be configured to use LDAP for recipient
lookups?
Certainly.
It is crucial that I be able to rewrite the addressed based on
information supplied
in the search DN and the output of the LDAP query.
For example:
I want to be able to address a message to "[EMAIL PROTECTED]" in the
RCPT TO command.
I would like the LDAP search DN to be based on the handle in the above
address.
The LDAP server will only return the hostname of the box where the
recipient mailbox is located.
I would like the address used in the RCPT TO command to be rewritten
based on information in the original RCPT TO command, and also from the
output of the LDAP search.
For example, if the user is found, hostA is returned in the query.
I would like Exim to take the handle supplied in the original RCPT TO
command, append the @ sign, followed by the output of the LDAP search,
followed by the domain supplied as part of the original RCPT TO command.
Is this possible????
I can't say for certain that it definitely is possible, but I think that it
ought to be. What you are trying to do is not a lot different from normal
aliasing using a redirect router.
For example, this is the router definition I use for aliasing. For a alias to
match the $local_part must be defined as a rfc822mailMember attribute of a entry
of class nisMailAlias. Somehow you need to construct the "data" part of the
redirect router from the combination of the return of the ldap lookup and
$local_part. This is the bit I am not sure about.
ldap_aliases:
driver = redirect
allow_fail
allow_defer
data = ${lookup ldap { \
user=LDAPU \
pass=LDAPP \
LDAPS/LDAP_BASE?\
rfc822mailMember?sub?(&(objectClass=nisMailAlias)(cn=${quote_ldap:$local_part}))}
\
{$value} fail}
file_transport = address_file
pipe_transport = address_pipe
where LDAPU and LDAPS are the bind id and password. LDAPS is the URI of the LDAP
server, and LDAP_BASE is the base of the search.
--
Nigel Wade, System Administrator, Space Plasma Physics Group,
University of Leicester, Leicester, LE1 7RH, UK
E-mail : [EMAIL PROTECTED]
Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555
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