--- title: "Pennsylvania Trucking Email Security — 78.3% lack DMARC | EFROS" description: "Email-security posture of 17,184 active motor carriers in Pennsylvania. 78.3% of domains have no enforced DMARC, 8.6% use p=reject. Free, public, source-cited." canonical: https://efros.com/research/us-trucking-email-security-index/by-state/pennsylvania/ --- - [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/) - /Pennsylvania By State / Pennsylvania # Pennsylvania Trucking Email Security **78.3%** of active carrier domains in Pennsylvania 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: #5 Carriers: 17,184 Domains: 14,592 By [Stefan Efros](https://www.linkedin.com/in/stefanefros-cyberdefense/), CEO & Founder, EFROS Updated · May 19, 2026 No enforced DMARC 78.3% national: 80.1% p=reject 8.6% national: 7.5% Microsoft 365 38.9% national: 38.1% M365 + no DMARC (carriers) 4,422 national: 92,822 MTA-STS 3.8% national: 3.3% DNSSEC 5.0% national: 6.1% Dead domains 731 of 14,592 scanned Total carriers 17,184 733 with dead domain ## Risk bands — Pennsylvania 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+ | 1,356 | 1,166 | | High | score 50–69 | 4,730 | 4,085 | | Medium | score 30–49 | 7,260 | 6,216 | | Low | score 15–29 | 2,942 | 2,278 | | Minimal | score ## Pennsylvania vs. national average No enforced DMARC 78.3% vs 80.1% national p=reject adoption 8.6% vs 7.5% national MTA-STS 3.8% vs 3.3% national DNSSEC 5.0% vs 6.1% national ## What the Pennsylvania numbers actually mean **DMARC posture.** Pennsylvania's share of carrier domains with no enforced DMARC sits at **78.3%**, better than the national average by 1.8 points. Pennsylvania carriers adopt the enforced p=reject DMARC policy at a meaningfully higher rate than the national pool. At the protective end of the distribution, 8.6% of Pennsylvania 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 4,422 M365 carriers in Pennsylvania with DMARC disabled represent the same "paid-for-but-switched-off" pattern that drives the national headline. That share is **25.7%** of all Pennsylvania 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 sits at 3.8%, materially below the threshold a freight payment-redirect attacker would have to clear to be inconvenienced by transport-layer policy. DNSSEC adoption in Pennsylvania runs at **5.0%** (vs 6.1% national), which matters for downstream DKIM and MTA-STS validation but is still a minority signal. **Risk-band shape.** Pennsylvania's critical and high bands combine to 35.4% 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 Pennsylvania-based carriers, the operational exposure is the 78.3%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 Pennsylvania with other states States closest in carrier-count rank to Pennsylvania. Each is scored on the same DNS-derived control set, so the comparison is apples-to-apples. [### Florida Rank #479.3% no DMARC · 17,917 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/florida/) [### Georgia Rank #680.5% no DMARC · 15,569 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/georgia/) [### New York Rank #380.6% no DMARC · 22,356 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/new-york/) [### Minnesota Rank #779.3% no DMARC · 14,179 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/minnesota/) [### Texas Rank #280.8% no DMARC · 32,465 carriers](https://efros.com/research/us-trucking-email-security-index/by-state/texas/) [← 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/).