Hello,
We have a postfix servers' backend for our domain (debian etch servers,
postfix 2.3.8). We have several domains and its users are in a ldap
database. So we have defined several ldap maps in postfix to check
relocated users, mail aliases and virtual users.
With this configuration we are observing that we have a lot of ldap
searches like:
(&(mail=@<localdomain>)(objectClass=CourierMailAccount))
that is with the local part of the email direction as null, void.
This problem is not (aparently) affecting to our email servers, so we
are receiving (and rejecting) mail without any problem, but it
overloading our ldap servers, because this is one of the most searched
operations.
Our postfix configuration is:
smtpd_recipient_restrictions =
reject_non_fqdn_sender,
reject_non_fqdn_recipient,
reject_unknown_sender_domain,
reject_unknown_recipient_domain,
...
check_recipient_access hash:/etc/postfix/verified_recipient_checks,
...
permit_mynetworks,
permit_sasl_authenticated,
...
reject_unknown_reverse_client_hostname,
reject_unauth_destination,
check_helo_access hash:/etc/postfix/helo_checks,
check_client_access cidr:/etc/postfix/client_checks.cidr,
reject_rbl_client <rbls>,
...
check_recipient_maps,
permit
...
relocated_maps = ldap:/etc/postfix/ldap-relocated.cf
...
relay_recipient_maps = ldap:/etc/postfix/ldap-vmail.cf,
ldap:/etc/postfix/ldap-sysaliases.cf
My map configuration is like this:
server_host = <ldapserver>
server_port = 389
search_base = <search base>
query_filter = (&(mail=%s)(objectClass=CourierMailAccount))
result_attribute = uid
bind = yes
bind_dn = <binddn>
bind_pw = <bindpw>
Any idea?
--
Angel L. Mateo Martínez
Sección de Telemática
Área de Tecnologías de la Información _o)
y las Comunicaciones Aplicadas (ATICA) / \\
http://www.um.es/atica _(___V
Tfo: 968367590
Fax: 968398337
