Unable to send mail due to the error "Cannot write ./[mail-id] (bfcommit, uid=0, gid=51): Permission denied"

Solution Verified - Updated -

Issue

  • Root and non-root users are not able to send mail.

    root@hostname:/root
13:57:08 #  cat /etc/hosts |  mailx -s "testmail-root" root@example.com
root@hostname:/root
13:57:11 # collect: Cannot write ./df48P5vBC9102850 (bfcommit, uid=0, gid=51): Permission denied

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • sendmail

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