Hey Everyone, Im looking forward for a good tutorial of install a Postfix server with auth. SMTP. Because, I've play a lot with the SMTP services but still my mailserver is open for the whole server.... I dont understand why.... Here is my cofig: Code: smtpd_sasl_type = dovecot smtpd_sasl_auth_enable = yes smtpd_sasl_path = private/auth-client smtpd_sasl_security_options = noanonymous smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination Still no auth is requierd for sending a mail.... What is wrong?