On Oct 3, 2013, at 04.46, Dieter Klünter dieter@dkluenter.de wrote:
You are connnecting to port 389, but s_client is not able to initiate a LDAP startTLS session (only SMTP and IMAP), so you have to connect ldaps and port 636.
s_client does support starttls for other protocols aside from smtp and imap [pop3, ftp, xmpp]. just not ldap.
-ben