---
title: "Email Security by Cargo Type — US Trucking Index | EFROS"
description: "Email-security posture of active US motor carriers broken down by cargo type. 14 cargo segments ranked by no-DMARC rate, p=reject adoption, MTA-STS, and DNSSEC. Free, public, source-cited."
canonical: https://efros.com/research/us-trucking-email-security-index/by-cargo/
---

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US Trucking Email Security Index / By Cargo

# Email Security by Cargo Type

DMARC enforcement, SPF posture, MTA-STS, and DNSSEC adoption across active US motor carriers in 14 cargo segments — measured via public DNS. Each segment page shows risk bands, email infrastructure split, and a national comparison.

[General Freight80.6% no DMARC · 169,977 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/general-freight/) [Building Materials79.6% no DMARC · 87,015 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/building-materials/) [Large Machinery78.1% no DMARC · 70,561 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/machinery/) [Hazardous Materials74.6% no DMARC · 45,574 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/hazmat/) [Grain / Feed79.1% no DMARC · 26,271 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/grain-feed/) [Motor Vehicles80.2% no DMARC · 22,079 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/motor-vehicles/) [Household Goods81.6% no DMARC · 17,343 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/household-goods/) [Liquids / Gas (Tanker)70.9% no DMARC · 16,694 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/tanker-liquids-gas/) [Refrigerated / Cold Chain78.1% no DMARC · 16,211 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/refrigerated/) [Chemicals68.8% no DMARC · 9,577 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/chemicals/) [Intermodal Containers79.5% no DMARC · 9,463 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/intermodal/) [Oilfield Equipment77.1% no DMARC · 8,085 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/oilfield/) [Livestock76.9% no DMARC · 7,958 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/livestock/) [Passengers63.6% no DMARC · 6,508 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/passengers/)

## See where your own domain stands

The research is free and self-serve. Run the same public checks on your own domain in about a minute — SPF, DKIM, DMARC, MTA-STS, DNSSEC, and more — and get a scored report by email. No agents, no credentials.

[Scan your domain free →](https://efros.com/tools/security-scan/) [Email security for fleets](https://efros.com/industries/trucking-company-msp/) [Talk to EFROS](https://efros.com/contact/?source=trucking-email-research)