postconf complains: /usr/sbin/postconf: warning: ldap:/etc/postfix/laborberlin.com.cf: unused parameter: start_tls=yes
according to http://www.postfix.org/ldap_table.5.html STARTTLS can be turned on with the start_tls parameter: start_tls = yes Both forms require LDAP protocol version 3, which has to be set explicitly with: version = 3 I'm using: === snip === server_host = 10.28.0.31 10.28.0.32 search_base = dc=laborberlin,dc=intern version = 3 bind_dn = CN=somecn bind_pw = secret query_filter = (proxyAddresses=smtp:%s) result_attribute = mail start_tls = yes === snip ===
