--- title: "Nevada Trucking Email Security — 74.0% lack DMARC | EFROS" description: "Email-security posture of 2,231 active motor carriers in Nevada. 74.0% of domains have no enforced DMARC, 11.5% use p=reject. Free, public, source-cited." canonical: https://efros.com/research/us-trucking-email-security-index/by-state/nevada/ --- - [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/) - /Nevada By State / Nevada # Nevada Trucking Email Security **74.0%** of active carrier domains in Nevada 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: #41 Carriers: 2,231 Domains: 2,030 By [Stefan Efros](https://www.linkedin.com/in/stefanefros-cyberdefense/), CEO & Founder, EFROS Updated · May 19, 2026 No enforced DMARC 74.0% national: 80.1% p=reject 11.5% national: 7.5% Microsoft 365 39.4% national: 38.1% M365 + no DMARC (carriers) 537 national: 92,822 MTA-STS 4.4% national: 3.3% DNSSEC 6.5% national: 6.1% Dead domains 124 of 2,030 scanned Total carriers 2,231 124 with dead domain ## Risk bands — Nevada 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+ | 159 | 155 | | High | score 50–69 | 570 | 537 | | Medium | score 30–49 | 894 | 806 | | Low | score 15–29 | 459 | 385 | | Minimal | score ## Nevada vs. national average No enforced DMARC 74.0% vs 80.1% national p=reject adoption 11.5% vs 7.5% national MTA-STS 4.4% vs 3.3% national DNSSEC 6.5% vs 6.1% national ## What the Nevada numbers actually mean **DMARC posture.** Nevada's share of carrier domains with no enforced DMARC sits at **74.0%**, better than the national average by 6.1 points. Nevada carriers adopt the enforced p=reject DMARC policy at a meaningfully higher rate than the national pool. At the protective end of the distribution, 11.5% of Nevada domains are at p=reject, the only DMARC policy that actually instructs receivers to drop spoofed mail. **Microsoft 365 surface.** Microsoft 365 mailflow adoption tracks the national distribution closely, so the 537 M365 carriers in Nevada with DMARC disabled represent the same "paid-for-but-switched-off" pattern that drives the national headline. That share is **24.1%** of all Nevada 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 Nevada runs at **6.5%** (vs 6.1% national), which matters for downstream DKIM and MTA-STS validation but is still a minority signal. **Risk-band shape.** Nevada's critical-band share is 7.1% versus 8.4% nationally, with the pressure shifting into the high band (25.5% of state carriers) where one or two control gaps still leave room for impersonation. 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 Nevada-based carriers, the operational exposure is the 74.0%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 Nevada with other states States closest in carrier-count rank to Nevada. Each is scored on the same DNS-derived control set, so the comparison is apples-to-apples. [### West Virginia Rank #4078.6% no DMARC · 1,799 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/west-virginia/) [### Arkansas Rank #4277.4% no DMARC · 1,871 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/arkansas/) [### Mississippi Rank #3977.6% no DMARC · 1,898 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/mississippi/) [### Hawaii Rank #4377.3% no DMARC · 1,736 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/hawaii/) [### Montana Rank #3876.0% no DMARC · 2,247 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/montana/) [← 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/).