Hi friends, I have some problems with my sendmail server. it has sending some garbage mails to outside and that mails bouncing back to on different user that is not existing users. the error are like ----- The following addresses had permanent fatal errors ----- vbqdfwhgvokn@xxxxxxxxxx (reason: 550 5.5.1 No such user here) ----- Transcript of session follows ----- ... while talking to data2.centrum.cz.: >>>>>> DATA <<< 550 5.5.1 No such user here 550 5.1.1 vbqdfwhgvokn@xxxxxxxxxxxxx User unknown <<< 503 5.5.2 Waiting for RCPT command Subject: Returned mail: see transcript for details From: Mail Delivery Subsystem <MAILER-DAEMON> Date: Thu, 15 Jul 2004 21:14:34 +0530 To: vbqdfwhgvokn@xxxxxxxxxx The original message was received at Thu, 15 Jul 2004 21:14:34 +0530 from root@localhost ----- The following addresses had permanent fatal errors ----- craig@xxxxxxx (reason: 550 5.1.1 User unknown) ----- Transcript of session follows ----- 550 5.1.1 craig@xxxxxxxxxx User unknown could any one please tell me how to stop this. __________________________________ Do you Yahoo!? Yahoo! Mail is new and improved - Check it out! http://promotions.yahoo.com/new_mail -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list