myhostname = mypc.my.box
mydomain = my.box
mynetworks_style = host
alias_maps = hash:/etc/mail/aliases
# SMTP client settings:
relayhost = [mx.sdf.org]:submission
smtp_generic_maps = hash:/etc/postfix/generic
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noplaintext, noanonymous
smtp_sasl_tls_security_options = noanonymous
## explicitly allow/prohibit certain SSL protocols:
#smtp_tls_mandatory_protocols = !SSLv2, !SSLv3, TLSv1
## use of "may" option allows fallback to cleartext
#smtp_tls_security_level = may
smtp_tls_security_level = encrypt
smtp_sasl_type = saslc