By State / California
California Trucking Email Security
80.1% of active carrier domains in California have no enforced DMARC — leaving freight operators open to email impersonation, payment-redirect fraud, and cargo theft via phishing.
No enforced DMARC
80.1%
national: 80.1%
p=reject
7.8%
national: 7.5%
Microsoft 365
36.3%
national: 38.1%
M365 + no DMARC (carriers)
9,245
national: 92,822
MTA-STS
3.5%
national: 3.3%
DNSSEC
6.4%
national: 6.1%
Dead domains
1,676
of 31,421 scanned
Total carriers
36,967
1,682 with dead domain
Risk bands — California carriers
Carrier counts by risk band (composite email-security pain score). Critical = score 70+; Minimal = score <15.
| Risk band | Score range | Carriers | Domains |
|---|---|---|---|
| Critical | score 70+ | 3,341 | 2,814 |
| High | score 50–69 | 10,712 | 9,482 |
| Medium | score 30–49 | 15,249 | 12,638 |
| Low | score 15–29 | 5,674 | 4,593 |
| Minimal | score <15 | 309 | 218 |
California vs. national average
See where your own domain stands
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Data as of 2026-05-20from public DNS measurements. Statistics are domain-weighted unless noted. State scope is the carrier's FMCSA-registered state. Methodology: read the full index.