Getting "554 5.7.1 : Relay access denied" error in Postfix.

Solution Verified - Updated -


  • Postfix is running on MX server. Mails are delivering on the system but not going to remote destination and getting following error:
Nov 26 08:33:54 smtp3 postfix/smtpd[27945]: NOQUEUE: reject: RCPT from[xx.xx.xx.xx]: 554 5.7.1 <>: Relay access denied; from=<> to=<> proto=ESMTP helo=<>)


  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Postfix

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