Email infrastructure signals 30-day movers
According to Live Direct Marketing's daily Tranco top-1M scan (September 13, 2026), these are the providers gaining and losing ground fastest, plus the movement in DMARC enforcement. Everything here is computed from the raw daily time-series — no editorializing.
Key facts
- DMARC enforcement now at 46.96% of DMARC domains (-0.33 pp over 30 days).
- 5 providers gaining and 5 losing share above the noise floor.
- Snapshot 2026-09-13; a machine-readable feed is at api/latest.json and alerts.json.
Market share in email infrastructure moves slowly, which is exactly why the movements are worth watching. A provider gaining share month after month is capturing new domains faster than it loses them; a steady decline usually signals a structural shift — self-hosting giving way to cloud suites, or a regional host consolidating into a larger one. These are the signals that a single-day snapshot can never show.
The movers below are computed purely from the daily time-series, with a noise floor to filter out sampling jitter. Nothing here is editorialized — it is the raw direction of travel.
Gaining share (last 30 days)
| Type | Provider | Share | Δ 30d |
|---|---|---|---|
| Mailbox | Microsoft 365 | 16.97% | +0.20 pp |
| Mailbox | Generic / unmatched (mail.*) | 1.94% | +0.16 pp |
| Esp | Cloudflare Email Routing | 1.95% | +0.08 pp |
| Mailbox | Cloudflare Email Routing | 1.75% | +0.07 pp |
| Esp | Amazon SES | 6.19% | +0.04 pp |
Losing share (last 30 days)
| Type | Provider | Share | Δ 30d |
|---|---|---|---|
| Mailbox | Self-Hosted | 22.38% | -0.25 pp |
| Esp | Namecheap Forwarding | 1.22% | -0.22 pp |
| Mailbox | Namecheap Email Forwarding | 1.11% | -0.21 pp |
| Esp | MailChannels | 1.01% | -0.08 pp |
| Mailbox | Proofpoint | 1.88% | -0.04 pp |
Domain-level events — ESP switches, DMARC upgrades/downgrades, first MTA-STS/BIMI publications — are in the daily change-feed.
How to read a share movement
A change measured in fractions of a percentage point sounds small, but against a base of hundreds of thousands of domains it represents thousands of sites switching providers. Sustained moves matter more than single-day spikes; watch whether a provider appears in the gainers list across many snapshots. For domain-level detail — which specific sites switched ESP or upgraded their DMARC policy — the daily change-feed is the companion to this page.
Run a free inbox-placement test across Gmail, Outlook, Yahoo and more — see exactly where your mail lands and why.
Frequently asked questions
What is the fastest-growing email provider right now?
Microsoft 365 — up 0.20 pp over 30 days to 16.97% as of September 13, 2026.
How is DMARC enforcement trending?
DMARC enforcement stands at 46.96% of DMARC-publishing domains, -0.33 pp over the last 30 days (as of September 13, 2026).