By Cargo / Motor Vehicles
Motor Vehicles Carriers — Email Security
80.2% of active motor vehicles carrier domains have no enforced DMARC — leaving this segment open to email impersonation, payment-redirect fraud, and cargo theft via phishing.
No enforced DMARC
80.2%
national: 80.1%
p=reject
8.1%
national: 7.5%
Microsoft 365
34.7%
national: 38.1%
M365 + no DMARC (carriers)
4,811
national: 92,822
MTA-STS
3.9%
national: 3.3%
DNSSEC
6.4%
national: 6.1%
Dead domains
1,417
of 19,156 scanned
Total carriers
22,079
1,419 with dead domain
Risk bands — Motor Vehicles 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+ | 2,054 | 1,835 |
| High | score 50–69 | 6,526 | 5,693 |
| Medium | score 30–49 | 8,597 | 7,418 |
| Low | score 15–29 | 3,307 | 2,645 |
| Minimal | score <15 | 176 | 148 |
Motor Vehicles vs. national average
See where your own domain stands
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Data as of 2026-05-20 from public DNS measurements. Statistics are domain-weighted unless noted. Cargo segment membership is based on FMCSA Company Census cargo flags. Methodology: read the full index.