OL 9 must have the s-nail package installed.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-271495SRG-OS-000363-GPOS-00150OL09-00-000290SV-271495r1091197_rule2025-05-081
Description
The s-nail package provides the mail command required to allow sending email notifications of unauthorized configuration changes to designated personnel.
ℹ️ Check
Verify that OL 9 has the s-nail package installed on the system with the following command: $ dnf list --installed s-nail Installed Packages s-nail.x86_64 14.9.22-6.el9 @ol9_appstream If the s-nail package is not installed, this is a finding.
✔️ Fix
Install the s-nail package with the following command: $ sudo dnf install -y s-nail