Insights

Weekly, data-grounded reads on how the world configures email — drawn from our live Email Infrastructure Index. Aggregate DNS only, no personal data.

83.4% of the web's email runs on just 3 providers
Thu, 02 Jul 2026 · A handful of gatekeepers receive most of the world's mail. What it means for senders.
Who actually enforces DMARC? Reject rates by email provider
Thu, 02 Jul 2026 · Enforcement isn't uniform — where a domain is hosted predicts whether it's protected.
The email authentication funnel: 91.5% publish SPF, only 26.1% actually reject
Thu, 02 Jul 2026 · Follow mail-enabled domains from "publishes a record" to "enforces it." Most drop out.
State of email: 80.6% mail-enabled, 76.5% SPF, 64.6% DMARC
Thu, 02 Jul 2026 · A one-glance snapshot of how the internet configures email right now.
50.4% of SPF records use ~all (softfail) — most email says "maybe"
Thu, 02 Jul 2026 · Among domains that publish SPF, softfail still beats hardfail. What that costs you.
Who runs the world's inboxes? MX market share across 50,000 domains
Thu, 02 Jul 2026 · Google, Microsoft, self-hosted — and a very long tail. Why deliverability is hard.
The DMARC enforcement gap: 64.6% publish it, only 22.7% enforce it
Thu, 02 Jul 2026 · Most domains that publish DMARC never actually turn it on. Here's the data.
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