postfix+dovecot+sasl+activate direcotory (centos 6)

1. vi /etc/dovecot/conf.d/10-auth.conf
uncommand the following setting
#!include auth-ldap.conf.ext
as
!include auth-ldap.conf.ext

2.  vi  /etc/dovecot/conf.d/auth-ldap.conf.ext
auth_username_format = %Lu

passdb ldap {
args = /etc/dovecot/dovecot-ldap.conf.ext

}

userdb static {
args = uid=501 gid=501 home=/home/vmail/%u
}
3. vi /etc/dovecot/dovecot-ldap.conf.ext
hosts = ad_server_ip
base = dc=test,dc=com,dc=tw
ldap_version = 3
auth_bind = yes
ldap_version = 3
auth_bind_userdn = test%u
pass_filter = (&(objectclass=person)(uid=%u))

ps. uid and gid must the same with postfix  and directory in linux server
ex: create one user "vmail"
user id is 501 , gid is 501

4. postfix's main.cf
virtual_mailbox_domains = $mydomain
virtual_mailbox_base = /home/vmail/
virtual_mailbox_maps = ldap:/etc/postfix/ldap-users.cf
virtual_uid_maps = static:501
virtual_gid_maps = static:501
virtual_alias_maps = hash:/etc/aliases,ldap:/etc/postfix/ldap-aliases-inner.cf
#smtp auth
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = no
smtpd_sasl_local_domain =
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
#additional param
message_size_limit = 40960000
smtpd_helo_required = yes
disable_vrfy_command = yes
strict_rfc821_envelopes = yes
bounce_queue_lifetime = 1d
maximal_queue_lifetime = 1d
data_directory = /var/db/postfix
header_checks = regexp:/etc/postfix/header_checks
smtp_host_lookup = native, dns
...
5. vi /etc/postfix/ldap-users.cf
server_host = ad_server_ip
search_base = dc=test,dc=com,dc=tw
version = 3
query_filter = (&(objectclass=*)(mail=%s))
result_attribute = samaccountname #Account from DC
result_format = %s/Maildir/
bind = yes
bind_dn = cn=ldap,cn=Users,dc=test,dc=com,dc=tw
bind_pw = ldappassword

6. vi //etc/sysconfig/saslauthd
# Directory in which to place saslauthd's listening socket, pid file, and so
# on. This directory must already exist.
SOCKETDIR=/var/run/saslauthd

# Mechanism to use when checking passwords. Run "saslauthd -v" to get a list
# of which mechanism your installation was compiled with the ablity to use.
#MECH=pam
MECH=ldap

# Additional flags to pass to saslauthd on the command line. See saslauthd(8)
# for the list of accepted flags.
FLAGS="-O /etc/postfix/saslauthd.conf -c -r"

7. vi /etc/postfix/saslauthd.conf
ldap_servers: ldap://ad_server_ip:389/
ldap_search_base: dc=test,dc=com,dc=tw
ldap_auth_method: bind
ldap_version: 3
ldap_bind_dn: cn=ldap,cn=Users,dc=test,dc=com,dc=tw
ldap_bind_pw: ldappassword
ldap_filter: (sAMAccountName=%u)

8. vi /etc/postfix/ldap-aliases-inner.cf
server_host = ad_server_ip
search_base = dc=test,dc=com,dc=tw
#scope = sub
query_filter = (memberOf:1.2.840.113556.1.4.1941:=CN=%s,OU=aliases_inner,DC=test,DC=com,DC=tw)
result_attribute = mail
result_format = %s
version = 3
bind = yes
bind_dn = cn=ldap,cn=Users,dc=test,dc=com,dc=tw
bind_pw = ldappassword



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