--- title: "Liquids / Gas (Tanker) Carriers — Email Security Posture | EFROS" description: "Email-security posture of 16,694 active Liquids / Gas (Tanker) motor carriers. 70.9% of domains have no enforced DMARC, 12.3% use p=reject. Free, public, source-cited." canonical: https://efros.com/research/us-trucking-email-security-index/by-cargo/tanker-liquids-gas/ --- - [Home](https://efros.com/) - /[Research](https://efros.com/research/) - /[US Trucking Email Security Index](https://efros.com/research/us-trucking-email-security-index/) - /[By Cargo](https://efros.com/research/us-trucking-email-security-index/by-cargo/) - /Liquids / Gas (Tanker) By Cargo / Liquids / Gas (Tanker) # Liquids / Gas (Tanker) Carriers — Email Security **70.9%** of active liquids / gas (tanker) 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: #8 Carriers: 16,694 Domains: 14,397 By [Stefan Efros](https://www.linkedin.com/in/stefanefros-cyberdefense/), CEO & Founder, EFROS Updated · May 19, 2026 No enforced DMARC 70.9% national: 80.1% p=reject 12.3% national: 7.5% Microsoft 365 42.6% national: 38.1% M365 + no DMARC (carriers) 4,076 national: 92,822 MTA-STS 4.4% national: 3.3% DNSSEC 5.2% national: 6.1% Dead domains 784 of 14,397 scanned Total carriers 16,694 784 with dead domain ## Risk bands — Liquids / Gas (Tanker) 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+ | 1,054 | 981 | | High | score 50–69 | 3,921 | 3,461 | | Medium | score 30–49 | 6,808 | 5,863 | | Low | score 15–29 | 3,900 | 3,108 | | Minimal | score ## Liquids / Gas (Tanker) vs. national average No enforced DMARC 70.9% vs 80.1% national p=reject adoption 12.3% vs 7.5% national MTA-STS 4.4% vs 3.3% national DNSSEC 5.2% vs 6.1% national ## What the Liquids / Gas (Tanker) numbers actually mean **Segment exposure framing.** Liquids/gas tanker fleets handle high-value, environmentally sensitive cargo. A payment-redirect or load-redirect attack can also create regulatory liability for the shipper if the receiving party is not the intended consignee. **DMARC posture.** The liquids / gas (tanker)segment's share of carrier domains with no enforced DMARC sits at **70.9%**, better than the national average by 9.2 points. Liquids / Gas (Tanker) carriers adopt enforced p=reject DMARC at a meaningfully higher rate than the national pool. At the protective end of the distribution, 12.3% 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 runs heavier than the national distribution. Every M365 tenant already includes the controls needed to enforce DMARC, so the 4,076 M365 carriers in this segment with DMARC disabled are leaving paid-for protection switched off. That share is **24.4%** of all liquids / gas (tanker) 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 9%, well short of where freight payment flows should sit. DNSSEC adoption across liquids / gas (tanker) carriers runs at **5.2%** (vs 6.1% national). **Risk-band shape.** Liquids / Gas (Tanker)'s critical-band share is 6.3% versus 8.4% nationally, with the pressure shifting into the high band (23.5% of segment carriers) where one or two control gaps still leave room for impersonation. **Best-practice control for this segment.** Operators dispatching liquid/gas tanker loads should require DMARC-verified email and BSA/AML-grade payee verification before any wire authorization. ## Compare Liquids / Gas (Tanker) with other cargo segments Segments closest in carrier-count rank to Liquids / Gas (Tanker). Each is scored on the same DNS-derived control set, so the comparison is apples-to-apples. [### Household Goods Rank #781.6% no DMARC · 17,343 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/household-goods/) [### Refrigerated / Cold Chain Rank #978.1% no DMARC · 16,211 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/refrigerated/) [### Motor Vehicles Rank #680.2% no DMARC · 22,079 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/motor-vehicles/) [### Chemicals Rank #1068.8% no DMARC · 9,577 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/chemicals/) [### Grain / Feed Rank #579.1% no DMARC · 26,271 carriers](https://efros.com/research/us-trucking-email-security-index/by-cargo/grain-feed/) [← 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/).