Marek Salwerowicz: > However, I would like to find sooner or later clients that don't use > STARTTLS befoe authentication. > > How can I configure postfix to see differences in logs?
Assuming that no sane client sends AUTH *before* sending STARTTLS, all you need is to set "smtpd_tls_loglevel=1" in main.cf (and do "postfix reload") to log the completion of the STARTTLS handhake. Wietse