smtp_tls or smtpd_tls

[gaby]

Hi

 I confuse smtp_tls..... parameters setings (i.e. smtp_tls_CAfile=...) with 
smtpd_tls_.... parameters setings.
For postfix witth TLS which settings is used smtpd_tls.. or smtp_tls...?
  What port is good for sent email via outlook express with postfix TLS 25 with 
requires a secure connections (SSL) or port 465 ?

Thanks

Gaby