[vchkpw] vpopmail 5.5 - openldap connection problem

hi all, I try to use the new vpopmail 5.5 with openldap backend i compile all without error ( install libdev also). I setting my connection data on /home/vpopmail/etc/vpopmail.openldap (i have the openldap 2.4.21 server on another machine) but each vpopmail command say me: ldap_simple_bind_s

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