Problem with users mailbox

[Bouabid Amine]

Hello, I'm installing qmail-ldap with ldap-control and auth smtp patchs I configured qmail as the document www.lifewithqmail.org/ldap, qmail can connect to ldap server and authenticate users but he does'nt find the mailbos for the user   Can some one help me to resolv this problem   When il sen d a mail to user, qmail responde with:   Sorry, no mailbox here by that name. (#5.1.1)   Cordially Amine Bouabid