postfix process displays error: (code=exited, status=255) while email function is working

Solution In Progress - Updated -

Issue

  • postfix status shows below non-zero message:
Process: 440067 ExecStartPre=/usr/sbin/restorecon -R /var/spool/postfix/pid/master.pid (code=exited, status=255)
  • And below message is logged in messages log file:
/usr/sbin/restorecon: lstat(/var/spool/postfix/pid/master.pid) failed: No such file or directory

Environment

  • RHEL 8.5
  • postfix-3.5.8-4.el8.x86_64

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