DMARC posture
DMARC posture is derived from public DNS-published DMARC records and describes visible mail-authentication policy evidence.
What .auDO observes
DMARC records and derived presence
.auDO preserves the public DMARC record evidence and derives a bounded posture view from whether relevant records are visible. This is not a full assessment of policy quality or mail flow.
Technical fields
Why it is observed
DMARC is a visible mail-governance signal
Why it matters
DMARC presence and policy provide public context for how a domain signals handling expectations for mail that does not align with authentication checks.
What visible change may mean
A change may reflect policy tuning, staged rollout, provider migration, DNS administration, cleanup or accidental removal.
Interpretation limits
Visible DMARC is not complete mail assurance
DMARC presence does not establish complete protection, correct alignment, reporting effectiveness or the quality of the wider email-control environment.
Common retained observations
DMARC presence change
Where to use this evidence
View current mail-authentication posture
Related concept
Why DMARC matters
Related signals