ldap 如何做 mail group

[kc19800322]

各位大大,小弟有一個問題搜尋google還是找不到什麼建議,想在這請問各位大大!
我的作業系統Debian 4.0 etch
小弟架設兩台機器,機器A是用來做openldap,機器B是做postfix
postfix會透過pam去跟ldap要user資料做認證!
我現在想要做mail group,我試著去編輯/etc/aliases檔案,但是那個檔案好像只有對local user有用處,postfix + ldap整合就不能使用這個檔案,想請問各位大大,要如何做ldap的mail group?
請各位大大提供一些建議給小弟叁考,謝謝!

[kc19800322]

感謝酷學園的SaPow大大給的方法,讓我可以做mail aliases,在這邊提供給大家叁考

virtual_alias_maps = ldap:accounts,ldap:aliases,$alias_maps
主要是在這多加$alias_maps,讓他可以去抓/etc/aliases

main.cf

myhostname = mail.abc.com.tw
mydomain = abc.com.tw
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = $mydomain, $myhostname, localhost.abc.com.tw, , localhost, autoreply.abc.com.tw
relayhost =
mynetworks = 127.0.0.0/8, 192.168.88.0/24, 10.0.88.0/24
#MAILDIR=$HOME/Maildir
mailbox_command = procmail -a "$EXTENSION" DEFAULT= $HOME
local_recipient_maps=
mailbox_size_limit = 153600000
recipient_delimiter = +
inet_interfaces = all
home_maildir = Maildir/
virtual_mailbox_limit = 153600000


#LDAP Configure

local_transport = virtual

accounts_server_host = 10.0.88.50
accounts_search_base = ou=Users,dc=abc,dc=com,dc=tw
accounts_query_filter = (&(objectClass=inetOrgPerson)(uid=%s))
accounts_result_attribute = uid
account_bind = no

mailbox_server_host = 10.0.88.50
mailbox_search_base = ou=Users,dc=abc,dc=com,dc=tw
mailbox_query_filter = (&(objectClass=inetOrgPerson)(uid=%s))
mailbox_result_format = %s/
mailbox_result_attribute = uid
mailbox_bind = no

aliases_server_host = 10.0.88.50
aliases_search_base = ou=Users,dc=abc,dc=com,dc=tw
aliases_query_filter = (&(objectClass=inetLocalMailRecipient)(mail=%s))
aliases_result_attribute = uid
aliases_bind =no

virtual_alias_maps = ldap:accounts,ldap:aliases,$alias_maps
virtual_mailbox_base =/home/
virtual_mailbox_maps = ldap:mailbox
virtual_transport = maildrop
virtual_uid_maps = hash:/etc/postfix/virtual_uids
virtual_gid_maps = static:513


小弟有另一個想法,想在LDAP上建立一個"ou=aliases",然後在上面建立mail aliases,全部都用ldap管理
,可是卻不瞭解postfix要如何去抓這裡的資料,因為aliases建立出來的屬性是cn
可是我們正常帳號抓的屬性是uid,不知道哪裡有文件可以叁考,請大大們再給小弟一點建議吧!
謝謝!!!