"tcpwrappers rejection" error in sendmail.

Solution Verified - Updated -

Issue

  • Getting "tcpwrappers rejection" after sending mail in mailog.

    Apr 14 21:16:44 test sendmail[29819]: t3F0819: from=root, size=81, class=0, nrcpts=1, msgid=<819@localhost.localdomain>, relay=root@localhost
Apr 14 21:16:44 test sendmail[29822]: t29822: tcpwrappers (test, 127.0.0.1) rejection
Apr 14 21:16:44 test sendmail[29819]: t9819: to=user@domain.com, ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30081, relay=[127.0.0.1] [127.0.0.1], dsn=5.0.0, stat=Service unavailable

Environment

  • Red Hat Enterprise Linux
  • Sendmail

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