hi ,
I have followed the document which you had send.
I had created a separated file called aliases in /etc/postfix/
I mentioned my ldap details in that file.
I need to know whether i need to create file called aliases or aliases.cf?
Then i executed the command postmap /etc/postfix/aliases
In the document which you given, they have mentioned to complie the postfix.
I have not installed postfix or ldap with source code.I have installed rpm alone.
I need to know, i have all my users information in ldap database.
Wheather i need to create users in OS level also
.Since am having nearly 20000 users.
But if we create users in OS then there is no need for ldap.
Since this is the critical issue, and we are in the implementation of a project.
plz some how help us with this issue

On 03/07/2008, Bjørn Ruberg <bjorn@ruberg.no> wrote:
Aravind Arjunan wrote:
 I had configured postfix for my mail server which is working fine.
I had configured openldap on the same server and added many entries in that.
It is also working fine.when i use ldapsearch i can able to view the entries etc.
The users which i had created in ldap is already there in OS for postfix.
I had integrated openldap with postfix, to fetch the mail infromation from openldap.
like mailid,mailQuota,mailbox location etc.
But when i send mail to user it is fetching from openldap at all.
It is strainght away delivering to mailbox.plz help me with this issue
  This is my main.cf <http://main.cf> file parameters.
 [root@master ~]# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases, *ldap:aliases
*command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
html_directory = no
inet_interfaces = all
mail_owner = postfix
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
mydomain = panafnet.com <http://panafnet.com>
myhostname = master.panafnet.com <http://master.panafnet.com>
mynetworks = <>, <>
myorigin = $mydomain
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES
relay_domains = $mydestination
relayhost = $mydomain
sample_directory = /usr/share/doc/postfix-2.3.3/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
unknown_local_recipient_reject_code = 550
*aliases_server_host = localhost
aliases_server_port = 389
aliases_search_base = dc=panafnet,dc=com
aliases_scope = sub
aliases_bind = no
aliases_query_filter = (&(objectClass=qmailUser)(mail=%s))
aliases_result_attribute = mailMessageStore
aliases_timeout = 10
aliases_version = 3*

IIRC, this way of doing LDAP lookups is obsolete. You need to move your LDAP configuration to a separate file. Refer to http://www.postfix.org/LDAP_README.html for how it should be done.

When you have set everything up correctly, test your LDAP lookup with "postmap -q". How to do this is also explained in LDAP_README.