B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
70.9%
70.9% -- share of domains with no effective dmarc protection for global email domains (2026-03)
As of March 2026, 70.9% of domains globally have no effective DMARC protection.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
70.9%
Unit
Percentage
Data Vintage
2026-03
Entity
Sample Size
1,000,000
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
unnamed industry DMARC tracker
Primary
Tier B
https://blog.automatedsalesmachine.com/email-authentication-inbox-delivery/ ↗
Source Article
5 Smart Email Authentication Rules Crushing Inbox Delivery - The Conversion Feed
Email authentication has crossed a point of no return. As of early 2026, the three largest inbox providers in the world — Google, Yahoo, and Microsoft — have moved from recommending SPF, DKIM, and DMARC compliance to actively rejecting messages from domains that haven’t implemented it. For small bus…
Original Research
unnamed industry DMARC tracker
· Original study ↗
Methodology
Industry analysis tracking over one million domains globally
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
global email domains: 70.9% share of domains with no effective dmarc protection. Source: unnamed industry DMARC tracker (2026-03). Via Lighthouse Intelligence -- https://lighthousedata.io/data/domains-no-dmarc-protection-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/domains-no-dmarc-protection-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>70.9%</strong> -- share of domains with no effective dmarc protection for global email domains<br><small>Source: unnamed industry DMARC tracker (2026-03) · <a href="https://lighthousedata.io/data/domains-no-dmarc-protection-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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