Hi to every body; I have a problem and that is belong to mail server issues. I have configured a mail server by using sendmail on RHL 9. The problem is that the mail send and received out side ( from yahoo to my domain ) and inside ( form mydomain to yahoo ) is ok from mail server , but when another system is trying to send the message from inside ( my doamin ) to yahoo via that mail server, the error comes , " The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was 'sarfrazr@xxxxxxxxx'. Subject 'checking', Account: 'Sarfraz's Account', Server: 'smtp.mydomain.com', Protocol: SMTP, Server Response: '550 5.7.1 <sarfrazr@xxxxxxxxx>... Relaying denied. IP name possibly forged [202.147.x.y]', Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79 " I did try to send it via live and via private ips but i failed . If you have any idea plz send me the solutions. Regards, Sarfraz -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list