Provider
Yahoo Mail
103 domains tracked. 14.6% at DMARC enforcement (p=reject or p=quarantine), backed by 15 enforced domains.
Domains tracked
103
103
DMARC enforcement
14.6%
p=reject + p=quarantine
Avg posture score
22.4
of 100
A-grade domains
0
0 A+ · 0 A
Authentication posture
per protocolDMARC
policy enforcement: 14.6%reject
11.7%quarantine
2.9%none
29.1%missing
56.3%SPF
pass rate: 42.7%pass
42.7%warn
1.0%fail
55.3%not found
1.0%DKIM
pass rate: 20.4%0
pass
20.4%warn
0.0%fail
78.6%not found
1.0%MTA-STS
pass rate: 0.0%00
pass
0.0%warn
0.0%fail
98.1%not found
1.9%TLS-RPT
pass rate: 0.0%0
pass
0.0%warn
28.2%fail
69.9%not found
1.9%BIMI
pass rate: 0.0%00
pass
0.0%warn
0.0%fail
98.1%not found
1.9%Top performers
11 of 103 tracked| # | Domain | Score | Grade |
|---|---|---|---|
| 1 | brassring.com | 70 | B |
| 2 | frontier.com | 64 | C |
| 3 | highfashionhome.com | 64 | C |
| 4 | exopolitics.org | 63 | C |
| 5 | bookemon.com | 61 | C |
| 6 | electricbargainstores.com | 59 | C |
| 7 | genstattu.com | 58 | C |
| 8 | fairwaygolfusa.com | 56 | C |
| 9 | auctmarts.com | 55 | C |
| 10 | clarktoys.com | 54 | C |
| 11 | bellsouth.net | 50 | C |
How this is measured
Each tracked domain is scanned for SPF, DKIM, DMARC, MTA-STS, TLS-RPT, and BIMI. Result statuses (pass / fail / warn / not-found) and DMARC policy values are aggregated into this page nightly. The top performers list is capped at 20. The full corpus is much larger and is not enumerated publicly.
Data provenance
- Scanner — Authex Labs public scanner (DNS, RFC-compliant)
- Refreshed — daily at 04:05 UTC
- Last seen — 8 May 2026