Luigi Cirillo: > Thank you Wietse, I have the option "-o > smtpd_client_restrictions=permit_sasl_authenticated,reject enabled" > for submission "inet n - - - - smtpd", I > think it is the same. > I continue to send emails from telnet and postfix does not ask for auth.
With "smtpd_client_restrictions=permit_sasl_authenticated,reject", the Postfix SMTP daemon rejects all RCPT TO commands. If you claim it does not reject all RCPT TO commands, then you have to show concrete evidence instead of a vague eye witness report. Show concrete configuration, show concrete evidence that you are using that configuration and that you did not forget to "postfix reload", show concrete evidence that Postfix SMTP daemon does not reject RCPT TO commands. Wietse