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AlmaLinux OS 9 must have the postfix package installed.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-272485ALMA-09-006845SV-272485r1155265_ruleCCI-000015medium
Description
Postfix is a free, open-source mail transfer agent (MTA) that sends and receives emails. It is a server-side application that can be used to set up a local mail server, create a null-client mail relay, use a Postfix server as a destination for multiple domains, or choose an LDAP directory instead of files for lookups. Postfix supports protocols like LDAP, SMTP AUTH (SASL), and TLS. It uses the Simple Mail Transfer Protocol (SMTP) to transfer emails between servers. Satisfies: SRG-OS-000304-GPOS-00121, SRG-OS-000343-GPOS-00134, SRG-OS-000363-GPOS-00150, SRG-OS-000447-GPOS-00201
STIGDate
Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide2026-02-27

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

IAC-15.1Automated System Account Management (Directory Services)
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (72) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AC-12Session Termination
1.00
AC-17(1)Monitoring and Control
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-17(9)Disconnect or Disable Access
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00

+62 more (top 10 by confidence shown)

CCI1 mapping
CCI-000015
1.00

Details

Check Text (C-272485r1155265_chk)

Note: If the admin can demonstrate that there is another system/service to send audit failure notifications to the administrator/ISSO, this control is not applicable. Verify AlmaLinux OS 9 has the postfix package installed with the following command: $ dnf list --installed postfix Example output: postfix.x86_64 2:3.5.9-24.el9 @AppStream If the "postfix" package is not installed, this is a finding.

Fix Text (F-76445r1069346_fix)

Install the postfix package with the following command: $ sudo dnf install postfix