Current mail observation
Mail signals visible now
Observed 10 Sep 2026 across 10 cohort domains.
MX posture
10Public MX visible
Evidence and posture detail
10 determinate; 0 indeterminate.
- Public MX visible10
- Null MX0
- No public MX observed0
SPF posture
ProtectedSome posture counts are withheld for privacy
Evidence and posture detail
10 determinate; 0 indeterminate.
- SPF not observed0
- Single SPF recordSuppressed
- Multiple SPF records0
- Malformed SPFSuppressed
DMARC posture
10Valid DMARC record
Evidence and posture detail
10 determinate; 0 indeterminate.
- DMARC not observed0
- Valid DMARC record10
- Multiple DMARC records0
- Malformed DMARC0
Visible infrastructure links
Mail service associations
Provider Resolution links visible MX routing and first-order SPF references to documented providers. It does not change Mail Posture.
Inbound mail routing
Documented providers linked from visible MX routing targets.
10of 10 target-bearing domains had at least one documented association.
Documented providers seen in 3+ cohort domains
- Microsoft5 cohort domains
- Mimecast3 cohort domains
2 lower-frequency provider names are withheld.
Provider counts can overlap and are not market share.
Evidence and coverage
10usable evidence
0insufficient evidence
Target presence
- Target-bearing10
- No target0
Documented association coverage
- Documented association10
- No documented association0
Unresolved targets
- Unresolved targets visible0
- No unresolved targets10
SPF service references
Documented providers linked from first-order SPF include and redirect targets.
Below thresholdCoverage is not published because fewer than 10 domains had targets.
Documented providers seen in 3+ cohort domains
- Microsoft5 cohort domains
10 lower-frequency provider names are withheld.
Provider counts can overlap and are not market share.
Evidence and coverage
10usable evidence
0insufficient evidence
Target presence
- Target-bearingSuppressed
- No targetSuppressed
Documented association coverage
This detail is not published because the target-bearing group is too small.
Unresolved targets
This detail is not published because the target-bearing group is too small.
How to read this
Inbound routing and SPF service references describe different roles. Provider names are shown only when they recur across at least three cohort domains. Smaller provider counts and privacy-sensitive distributions remain withheld. These are infrastructure associations, not supplier contracts or market share.
Classification: provider-resolution-v1 · Provider Catalogue 1.5.0. The 30/90-day section below is existing cohort history; it does not track Mail Service Association change.