STIGUI
V-269336CAT II — Medium severitySV-269336r1050218_rule

AlmaLinux OS 9 must not have the sendmail package installed.

Rule version ALMA-09-028950 · STIG v1 · 2026-08-25

Discussion

The sendmail software was not developed with security in mind, and its design prevents it from being effectively contained by SELinux. Postfix must be used instead.

Check

Verify that the sendmail package is not installed with the following command:

$ dnf list --installed sendmail

Error: No matching Packages to list

If the "sendmail" package is installed, this is a finding.

Fix

Remove the sendmail package with the following command:

$ dnf remove sendmail

Identifiers

Group ID
V-269336
Group title
SRG-OS-000095-GPOS-00049
Rule ID
SV-269336r1050218_rule
Check ID
C-73367r1048384_chk
Fix ID
F-73268r1048385_fix