Erro do Postfix no RH9

Meu postfix fica gernado esses logs, sendo que nenhum user da minha rede esta enviando mail, na verdade os mails que envio apartir das contas nao chegam no destinatario. Algeum sabe porque esta dando esse erro? Uso postfix + Uebmiau + Apache no RH9

-------------------------------------------------
Sep 6 10:17:40 mail postfix/smtp[15208]: BCDDB74E70: to=<[email protected]>, relay=none, delay=242606, status=deferred (Name service error for bradsnet.com: Host not found, try again)
Sep 6 10:17:40 mail postfix/smtp[15173]: BBCE47535B: to=<[email protected]>, relay=none, delay=201200, status=deferred (Name service error for medical-email.com: Host not found, try again)
Sep 6 10:17:40 mail postfix/smtp[15165]: BBC1B73EF7: to=<[email protected]>, relay=none, delay=403070, status=deferred (Name service error for countryilink.net: Host not found, try again)
Sep 6 10:17:41 mail postfix/smtp[15205]: BB1837564F: to=<[email protected]>, relay=none, delay=181813, status=deferred (Name service error for aol.com: Host not found, try again)
Sep 6 10:17:41 mail postfix/smtpd[15494]: reject: RCPT from unknown[213.22.197.135]: 554 <[email protected]>: Recipient address rejected: Relay access denied; from=<[email protected]> to=<[email protected]>
Sep 6 10:17:43 mail postfix/smtp[15195]: B5A6875DAF: to=<[email protected]>, relay=none, delay=63478, status=deferred (Name service error for aeiou.pt: Host not found, try again)
Sep 6 10:17:43 mail postfix/smtp[15184]: B57AD75D20: to=<[email protected]>, relay=none, delay=91992, status=deferred (Name service error for medical-email.com: Host not found, try again)
Sep 6 10:17:43 mail postfix/smtp[15193]: B5C4273BB1: to=<[email protected]>, relay=none, delay=111011, status=deferred (Name service error for barkada.com: Host not found, try again)
Sep 6 10:17:43 mail postfix/smtp[15212]: B526373E91: to=<[email protected]>, relay=none, delay=427133, status=deferred (Name service error for digisolutions.com: Host not found, try again)
Sep 6 10:17:48 mail postfix/smtpd[15494]: reject: RCPT from unknown[213.22.197.135]: 554 <[email protected]>: Recipient address rejected: Relay access denied; from=<[email protected]> to=<[email protected]>
Sep 6 10:17:48 mail postfix/smtp[15164]: BBE3773D0A: to=<[email protected]>, relay=none, delay=58011, status=deferred (Name service error for mail.limousines.com: Host not found, try again)
Sep 6 10:17:49 mail postfix/smtp[15160]: BBE2475C10: to=<[email protected]>, relay=none, delay=134434, status=deferred (Name service error for 36.every1.net: Host not found, try again)
Sep 6 10:17:51 mail postfix/smtp[15189]: BB29374A32: to=<[email protected]>, relay=none, delay=287058, status=deferred (Name service error for eqguild.net: Host not found, try again)
Sep 6 10:17:51 mail postfix/smtp[15186]: BBF1473B0C: to=<[email protected]>, relay=none, delay=124664, status=deferred (Name service error for persepolis.every1.net: Host not found, try again)
Sep 6 10:17:51 mail postfix/nqmgr[15156]: F1CBF73C3A: to=<[email protected]>, relay=none, delay=84843, status=deferred (Name service error for persepolis.every1.net: Host not found, try again)
Sep 6 10:17:53 mail postfix/smtp[15214]: BBE22759F3: to=<[email protected]>, relay=none, delay=153221, status=deferred (Name service error for eliteral.com: Host not found, try again)
Postfix