Angel L. Mateo: > 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.
Postfix virtual alias table lookups are documented in virtual(5). http://www.postfix.org/virtual.5.html. See also ldap_table(5) for details specific to LDAP lookups. http://www.postfix.org/ldap_table.5.html Wietse > 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 Mart?nez > Secci?n de Telem?tica > ?rea de Tecnolog?as de la Informaci?n _o) > y las Comunicaciones Aplicadas (ATICA) / \\ > http://www.um.es/atica _(___V > Tfo: 968367590 > Fax: 968398337 > > >
