By Cargo / General Freight

General Freight Carriers — Email Security

80.6% of active general freight carrier domains have no enforced DMARC — leaving this segment open to email impersonation, payment-redirect fraud, and cargo theft via phishing.

Edition: 2026-Q2Segment rank: #1Carriers: 169,977Domains: 145,646

By Stefan Efros, CEO & Founder, EFROS

Updated · May 19, 2026

No enforced DMARC

80.6%

national: 80.1%

p=reject

7.4%

national: 7.5%

Microsoft 365

35.7%

national: 38.1%

M365 + no DMARC (carriers)

39,479

national: 92,822

MTA-STS

3.1%

national: 3.3%

DNSSEC

8.0%

national: 6.1%

Dead domains

9,600

of 145,646 scanned

Total carriers

169,977

9,617 with dead domain

Risk bands — General Freight 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+	13,998	12,463
High	score 50–69	49,767	43,867
Medium	score 30–49	68,963	58,404
Low	score 15–29	26,230	20,317
Minimal	score <15	1,402	995

General Freight vs. national average

No enforced DMARC80.6%vs 80.1% national

p=reject adoption7.4%vs 7.5% national

MTA-STS3.1%vs 3.3% national

DNSSEC8.0%vs 6.1% national

← Full US Trucking Email Security Index ← All cargo types

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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.