Stuff

#smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks
#smtp_sender_restrictions = permit_sasl_authenticated
#smtp_sasl_auth_enable = yes
#smtp_sasl_security_options = noanonymous
#smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd

smtpd_sender_restrictions = permit_sasl_authenticated
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_password_maps = hash:/etc/postfix/sasl_passwd