---
title: "Livestock Carriers — Email Security Posture | EFROS"
description: "Email-security posture of 7,958 active Livestock motor carriers. 76.9% of domains have no enforced DMARC, 10.1% use p=reject. Free, public, source-cited."
canonical: https://efros.com/research/us-trucking-email-security-index/by-cargo/livestock/
---

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- /Livestock

By Cargo / Livestock

# Livestock Carriers — Email Security

**76.9%** of active livestock carrier domains have no enforced DMARC. That leaves this segment open to email impersonation, payment-redirect fraud, and cargo theft via phishing.

Edition: 2026-Q2 Segment rank: #13 Carriers: 7,958 Domains: 5,073

By [Stefan Efros](https://www.linkedin.com/in/stefanefros-cyberdefense/), CEO & Founder, EFROS

Updated · May 19, 2026

No enforced DMARC

76.9%

national: 80.1%

p=reject

10.1%

national: 7.5%

Microsoft 365

29.0%

national: 38.1%

M365 + no DMARC (carriers)

1,111

national: 92,822

MTA-STS

5.3%

national: 3.3%

DNSSEC

5.1%

national: 6.1%

Dead domains

298

of 5,073 scanned

Total carriers

7,958

298 with dead domain

## Risk bands — Livestock 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+ | 640 | 520 |
| High | score 50–69 | 2,515 | 1,595 |
| Medium | score 30–49 | 2,960 | 1,823 |
| Low | score 15–29 | 1,484 | 794 |
| Minimal | score

## Livestock vs. national average

No enforced DMARC 76.9% vs 80.1% national

p=reject adoption 10.1% vs 7.5% national

MTA-STS 5.3% vs 3.3% national

DNSSEC 5.1% vs 6.1% national

## What the Livestock numbers actually mean

**Segment exposure framing.** Livestock transport is animal-welfare-regulated and time-critical — a redirected dispatch instruction risks animal welfare violations as well as freight loss.

**DMARC posture.** The livestocksegment's share of carrier domains with no enforced DMARC sits at **76.9%**, better than the national average by 3.2 points. Livestock carriers adopt enforced p=reject DMARC at a meaningfully higher rate than the national pool. At the protective end of the distribution, 10.1% of segment domains are at p=reject, the only DMARC policy that actually instructs receivers to drop spoofed mail.

**Microsoft 365 surface.** Microsoft 365 mailflow adoption sits below the national rate, which shifts the remediation surface toward self-hosted and Google Workspace estates where DMARC has to be configured at the DNS layer rather than flipped on in a tenant policy. That share is **14.0%** of all livestock carriers — a one-flag-flip remediation set that segment-specific MSPs can clear in a single quarter without touching DNS infrastructure.

**Transport encryption.** MTA-STS adoption (the encrypted-transport policy that prevents DNS-downgrade interception) runs above the national rate, but the absolute floor is still under 10%, well short of where freight payment flows should sit. DNSSEC adoption across livestock carriers runs at **5.1%** (vs 6.1% national).

**Risk-band shape.** Livestock's critical and high bands combine to 39.6% of segment carriers, close to the national distribution, so remediation prioritization here should follow the same shape as the national program.

**Best-practice control for this segment.** Livestock shippers should treat carrier email-security verification as part of the same welfare-compliance posture that produces health certificates and shipping permits.

## Compare Livestock with other cargo segments

Segments closest in carrier-count rank to Livestock. Each is scored on the same DNS-derived control set, so the comparison is apples-to-apples.

[### Oilfield Equipment Rank #1277.1% no DMARC · 8,085 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/oilfield/) [### Passengers Rank #1463.6% no DMARC · 6,508 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/passengers/) [### Intermodal Containers Rank #1179.5% no DMARC · 9,463 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/intermodal/) [### Chemicals Rank #1068.8% no DMARC · 9,577 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/chemicals/) [### Refrigerated / Cold Chain Rank #978.1% no DMARC · 16,211 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/refrigerated/)

[← Full US Trucking Email Security Index](https://efros.com/research/us-trucking-email-security-index/) [← All cargo types](https://efros.com/research/us-trucking-email-security-index/by-cargo/) [Switch to state view →](https://efros.com/research/us-trucking-email-security-index/by-state/)

## 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)

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](https://efros.com/research/us-trucking-email-security-index/).