ah yes, that's great. Thanks so much!
My mistake is that just uncommented the first line only:
#smtps inet n - - - - smtpd
this makes postfix listen on port 465 yet that's not enough, i couldn't configure my email client to send email thru port 465 (encryption type is ssl)
only when the next line is removed comment
# -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes
i can send message wrapped by ssl
by the way, if i just uncommend the first line, i could still send message under port 25 with tls. So what's the difference btw ssl and tls, can u explain it for me?
thank you edge, and you, falko, for your outstanding howto!