--- title: "Washington Trucking Email Security — 78.0% lack DMARC | EFROS" description: "Email-security posture of 11,961 active motor carriers in Washington. 78.0% of domains have no enforced DMARC, 8.5% use p=reject. Free, public, source-cited." canonical: https://efros.com/research/us-trucking-email-security-index/by-state/washington/ --- - [Home](https://efros.com/) - /[Research](https://efros.com/research/) - /[US Trucking Email Security Index](https://efros.com/research/us-trucking-email-security-index/) - /[By State](https://efros.com/research/us-trucking-email-security-index/by-state/) - /Washington By State / Washington # Washington Trucking Email Security **78.0%** of active carrier domains in Washington have no enforced DMARC. That leaves freight operators open to email impersonation, payment-redirect fraud, and cargo theft via phishing. Edition: 2026-Q2 State rank: #11 Carriers: 11,961 Domains: 9,905 By [Stefan Efros](https://www.linkedin.com/in/stefanefros-cyberdefense/), CEO & Founder, EFROS Updated · May 19, 2026 No enforced DMARC 78.0% national: 80.1% p=reject 8.5% national: 7.5% Microsoft 365 41.3% national: 38.1% M365 + no DMARC (carriers) 2,989 national: 92,822 MTA-STS 4.4% national: 3.3% DNSSEC 5.2% national: 6.1% Dead domains 692 of 9,905 scanned Total carriers 11,961 695 with dead domain ## Risk bands — Washington 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+ | 1,048 | 939 | | High | score 50–69 | 3,198 | 2,614 | | Medium | score 30–49 | 4,900 | 3,980 | | Low | score 15–29 | 2,014 | 1,595 | | Minimal | score ## Washington vs. national average No enforced DMARC 78.0% vs 80.1% national p=reject adoption 8.5% vs 7.5% national MTA-STS 4.4% vs 3.3% national DNSSEC 5.2% vs 6.1% national ## What the Washington numbers actually mean **DMARC posture.** Washington's share of carrier domains with no enforced DMARC sits at **78.0%**, better than the national average by 2.1 points. enforced p=reject DMARC adoption is roughly in line with the national pool: most Washington domains either have no DMARC at all or are stuck at the monitor-only p=none policy. At the protective end of the distribution, 8.5% of Washington domains are at p=reject, the only DMARC policy that actually instructs receivers to drop spoofed mail. **Microsoft 365 surface.** Microsoft 365 mailflow adoption is heavier than the national distribution. Every M365 tenant already includes the controls needed to enforce DMARC, so the 2,989 M365 carriers in Washington with DMARC disabled are leaving paid-for protection switched off. That share is **25.0%** of all Washington carriers — a one-flag-flip remediation set that any regional MSP or in-house IT lead can clear in a single quarter. **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 in Washington runs at **5.2%** (vs 6.1% national), which matters for downstream DKIM and MTA-STS validation but is still a minority signal. **Risk-band shape.** Washington's critical and high bands combine to 35.5% of state carriers, close to the national distribution, so remediation prioritization here should follow the same shape as the national program. The composite pain score blends SPF posture, DMARC enforcement, MTA-STS presence, and DNSSEC, so a carrier clusters in the critical band only when several controls fail together. Remediation that flips DMARC to enforcement plus turns on MTA-STS typically moves a carrier two bands down in one quarter. **What this means for buyers and shippers.** If you are dispatching freight, settling broker payments, or receiving rate confirmations from Washington-based carriers, the operational exposure is the 78.0%of domains that cannot stop a stranger from sending email in the carrier's name. Payment-redirect and load-redirect fraud rides on exactly that gap. Verifying a counterparty's DMARC posture before a first wire (a 30-second DNS lookup) is the cheapest control in the freight stack. ## Compare Washington with other states States closest in carrier-count rank to Washington. Each is scored on the same DNS-derived control set, so the comparison is apples-to-apples. [### Illinois Rank #1077.9% no DMARC · 12,352 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/illinois/) [### Massachusetts Rank #1280.3% no DMARC · 9,925 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/massachusetts/) [### Wisconsin Rank #977.0% no DMARC · 13,274 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/wisconsin/) [### Ohio Rank #1375.9% no DMARC · 11,310 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/ohio/) [### Michigan Rank #878.1% no DMARC · 13,943 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/michigan/) [← Full US Trucking Email Security Index](https://efros.com/research/us-trucking-email-security-index/) [← All states](https://efros.com/research/us-trucking-email-security-index/by-state/) [Switch to cargo-segment view →](https://efros.com/research/us-trucking-email-security-index/by-cargo/) ## 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 2026-05-20from public DNS measurements. Statistics are domain-weighted unless noted. State scope is the carrier's FMCSA-registered state. Methodology: [read the full index](https://efros.com/research/us-trucking-email-security-index/).