By Cargo / Large Machinery
Large Machinery Carriers — Email Security
78.1% of active large machinery carrier domains have no enforced DMARC — leaving this segment open to email impersonation, payment-redirect fraud, and cargo theft via phishing.
No enforced DMARC
78.1%
national: 80.1%
p=reject
8.7%
national: 7.5%
Microsoft 365
40.6%
national: 38.1%
M365 + no DMARC (carriers)
17,450
national: 92,822
MTA-STS
3.8%
national: 3.3%
DNSSEC
5.1%
national: 6.1%
Dead domains
3,284
of 60,133 scanned
Total carriers
70,561
3,288 with dead domain
Risk bands — Large Machinery 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+ | 5,569 | 5,021 |
| High | score 50–69 | 20,209 | 17,213 |
| Medium | score 30–49 | 28,654 | 24,456 |
| Low | score 15–29 | 12,193 | 9,636 |
| Minimal | score <15 | 648 | 523 |
Large Machinery 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.