I follow the perfect setup ubuntu 6.10 I have this error sending mail to accounts outside the server Nov 30 09:46:32 nodo1 postfix/smtpd[18879]: NOQUEUE: reject: RCPT from unknown[201.250.161.232]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<[127.0.0.1]> Internal accounts works fine ([email protected]) I already send mail to prueba11 with Thunderbird, smtp authentication works fine with tsl. Please Help