jujcabzjlbacomcastnet victor mentioned original post already tried syntax within ldap source prefixed nonprefixed results simply sent result last experiment ive since updated openldap v248 rebuilt postfix 251 per note entries ldap sources prefixed appropriately ldap domains similar files accounts accountsmaps aliases domains_server_host 127001 domains_version 3 domains_search_base omaildcrealdomainnamedccom domains_query_filter objectclassjammvirtualdomainjvdsaccountactivetruedeletefalse domains_result_attribute jvd domains_bind domains_scope one though ldap source definitions dir maincf postmap responds read file made entry ldap tree virtual domain wonderlandcom though seems irrelevant maincf weve tried virtual_mailbox_domainsldapdomains _and_ virtual_mailbox_domainsldapetcpostfixdomains result ldap processing request throwing standard historical protocol use ldapv3 message postmap appears connecting protocol 2 read search base way sure postmap even reading etcpostfixdomains file postmap v c etcpostfix q wonderlandcom ldapdomains postmap dict_open ldapdomains postmap dict_ldap_lookup dict_ldap_lookup postmap dict_ldap_lookup existing connection ldap source domains reopening postmap dict_ldap_connect connecting server ldaplocalhost389 postmap dict_ldap_connect actual protocol version used 2 postmap dict_ldap_connect binding server ldaplocalhost389 dn postmap dict_ldap_connect successful bind server ldaplocalhost389 postmap dict_ldap_connect cached connection handle ldap source domains postmap dict_ldap_lookup domains searching filter mailacceptinggeneralidwonderlandcom postmap warning dict_ldap_lookup domains search base found 32 object postmap dict_ldap_close closed connection handle ldap source domains hmmm thanks lou picciano original message victor duchovni thu feb 28 2008 110041pm 0000 lou picciano wrote postfix friends heres weird one know someone seen issue get postfix query ldap protocol 3 even though explicitly specified recent changes moved bdb backend working aok environment includes postfix 251 openldap 2335 using jamm schema moment solaris 10 postmap v q vcswywonderlandcom ldapaccounts postmap dict_ldap_connect connecting server ldaplocalhost389 postmap dict_ldap_connect actual protocol version used 2 postmap dict_ldap_connect binding server ldaplocalhost389 dn postmap warning dict_ldap_connect unable bind server ldaplocalhost389 2 protocol error ldapaccounts source contains ldap accounts accounts_server_host 127001 version 3 search_base omaildcwonderlanddccom accounts_query_filter objectclassjammmailaccountmailsaccountactivetruedeletefalse accounts_result_attribute mailbox accounts_bind parameters version search_base prefixed accounts_ prefix used server_host query_filter viktor disclaimer offlist followups get onlist replies get ignored please ignore replyto header unsubscribe postfixusers list visit httpwwwpostfixorglistshtml click link response solves problem best way thank send worked thanks followup must respond please put worked thanks subject delete quickly fri 08 aug 2008 064722 0000 dict_ldap_connect unable bind server ldaplocalhost389 2 protocol error