Defaults.Exposed › Stats › Email authentication (SPF, DKIM, DMARC)
Who hosts the world's email domains?
As of July 28, 2026 · census snapshot 2026-07-28
As of July 28, 2026, the largest managed email provider by domain count is Google Workspace, hosting 12.74% of the 163.2 million domains with MX records in the Defaults.Exposed census; Microsoft 365 follows at 8.61%.
| Email provider | Domains | Share of MX domains |
|---|---|---|
| Self-hosted / other | 86,248,742 | 52.84% |
| Google Workspace | 20,803,363 | 12.74% |
| Microsoft 365 | 14,051,037 | 8.61% |
| GoDaddy | 9,310,905 | 5.70% |
| Namecheap | 7,474,573 | 4.58% |
| IONOS | 6,300,144 | 3.86% |
| Hostinger | 4,603,911 | 2.82% |
| OVH | 2,599,468 | 1.59% |
| Cloudflare Email Routing | 2,202,275 | 1.35% |
| Zoho Mail | 1,773,475 | 1.09% |
| Proofpoint | 1,106,543 | 0.68% |
| one.com | 1,019,219 | 0.62% |
Cite this
Statistic current as of July 28, 2026. Recomputed from the live census each edition; the number on this page and the machine-readable twin always match. Please cite Defaults.Exposed and link this page.
Defaults.Exposed, "Who hosts the world's email domains?" (as of July 28, 2026). https://defaults.exposed/stats/who-hosts-the-worlds-email
Permalink:https://defaults.exposed/stats/who-hosts-the-worlds-email · Machine-readable:email-host-share.json · Licence:open data
Methodology: how we grade the internet · Source data: defaults.exposed/data. Updated with each census edition.