AlmaLinux OS 9 must not have the sendmail package installed.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-269336 | SRG-OS-000095-GPOS-00049 | ALMA-09-028950 | SV-269336r1050218_rule | 2026-02-27 | 1 |
Description
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.
ℹ️ 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