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U.S. Public Sector Email Security Intelligence

Government, Education & Special Districts — DNS & Email Authentication Analysis
MonitorWorkspace
March 2026
51 Jurisdictions • 69,892 Entities
Only 47.2% of U.S. government domains have DMARC configured — more than half remain vulnerable to email spoofing and phishing attacks
69,892
Public Entities
35,862
Domains Analyzed
75.9%
SPF Adoption
47.2%
DMARC Adoption
28.7pp
SPF–DMARC Gap
14.2%
Proxy/Gateway Rate

Entity Type — Domain Coverage

Entity TypeTotalHas DomainCoverage
Higher Education3,2463,18998.2%
County3,1462,84990.6%
K-12 Districts18,47615,94986.3%
Municipality20,81014,02367.4%
Special District7,4594,81064.5%
State Agency1,46433522.9%
Township15,2903,08120.2%
35,548 public entities still lack an identifiable web domain

Email Gateway Adoption by Entity Type

Entity TypeWith MXGatewayRate
County2,10854525.9%
Higher Education2,76756420.4%
State Agency1222419.7%
Municipality8,3381,54618.5%
Township1,64630318.4%
Special District2,62734513.1%
K-1212,6071,0338.2%
Proxy/gateway use correlates strongly with higher DMARC adoption (+22.7pp)

The proxy uplift effect: Public entities using a dedicated email security gateway (Barracuda, Proofpoint, Mimecast) achieve 75.7% DMARC adoption vs only 53.0% for non-proxied entities — a +22.7pp difference. Infrastructure choice is the single strongest predictor of email security posture.

Proxy Uplift Analysis

MetricProxied (4,111)Non-Proxied (24,954)Uplift
SPF Adoption97.3%89.2%+8.1pp
DMARC Adoption75.7%53.0%+22.7pp

Top Email Providers (Public Sector)

ProviderEntitiesShare
Google Workspace9,98834.6%
Microsoft 3659,20231.9%
Other / Self-hosted3,60712.5%
Barracuda1,3684.7%
Proofpoint1,0913.8%
Mimecast4561.6%

Research Collaboration

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MonitorWorkspace • A Lokentra product • monitorworkspace.com • 69,892 entities analyzed • March 2026
Full interactive report: lokentra-site.web.app/research