ISM lookup / Email

ISM-0574 · September 2026

Sender Policy Framework

Guidelines for email / Email gateways and servers / Sender Policy Framework

Official control wording

SPF is used to specify authorised email servers (or lack thereof) for an organisation’s domains (including subdomains).

Applicability

  • Non-classified (NC)
  • OFFICIAL: Sensitive (OS)
  • PROTECTED (P)
  • SECRET (S)
  • TOP SECRET (TS)

These are ASD’s applicability markings. Select and tailor controls for your system’s risk, classification and operating context with the system owner and authorising officer.

Implementation guidance

This control is included as official reference material. We have not published a reviewed Kubernetes implementation mapping for it. Browse the 23 guides with bounded public mappings.

Official source

ASD’s ISM OSCAL v2026.09.4 · Original catalogue JSON · Pinned checksums and edition details

Control source identifier: ism-0574. Check the official release before relying on this snapshot for an assessment.

Official control wording and applicability: Australian Signals Directorate, © Commonwealth of Australia 2026. September 2026 ISM, OSCAL v2026.09.4, reproduced under CC BY 4.0. Formatting is adapted for this website.

Latticework Systems’ implementation guidance is our interpretation. Provenance and scope.