According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Cloudflare Email Routing is the mailbox provider for 10,508 domains — 1.60% of 658,711 domains with MX records. Detection method: primary MX record (lowest preference).
Cloudflare Email Routing is a mail forwarding service operated by Cloudflare, a global content delivery and security platform. The service intercepts mail sent to a domain and forwards it to one or more recipient addresses, eliminating the need to run a dedicated mail server.
Cloudflare Email Routing is most prevalent among smaller and mid-market websites rather than large enterprises, distributed across many top-level domains with concentration on .com and English-language sites. For senders targeting such sites, understanding Cloudflare Email Routing's forwarding architecture becomes relevant when troubleshooting deliverability; for recipients, using Cloudflare Email Routing means inbound mail is processed according to Cloudflare's filtering policies rather than a traditional mail server's behaviour.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 1 | 0.0% |
| Top 10,000 | 101 | 1.0% |
| Top 100,000 | 1,037 | 9.9% |
| Top 1,000,000 | 7,097 | 67.5% |
| Unranked | 2,272 | 21.6% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 4,588 | 43.7% | |
| .net | 743 | 7.1% | |
| .org | 547 | 5.2% | |
| .id | 283 | 2.7% | |
| .io | 231 | 2.2% | |
| .app | 168 | 1.6% | |
| .in | 131 | 1.2% | |
| .de | 115 | 1.1% | |
| .com.br | 112 | 1.1% | |
| .cc | 110 | 1.0% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 10,508 domains.
| Type | Service | Domains | Share of Cloudflare Email Routing users |
|---|---|---|---|
| ESP | Cloudflare Email Routing | 10,266 | 97.7% |
| ESP | Amazon SES | 221 | 2.1% |
| ESP | Mailgun | 129 | 1.2% |
| ESP | Brevo (ex-Sendinblue) | 93 | 0.9% |
| ESP | Mailjet (Sinch) | 89 | 0.8% |
| ESP | Zendesk | 77 | 0.7% |
| ESP | MailerSend | 76 | 0.7% |
| ESP | Elastic Email | 71 | 0.7% |
| ESP | SendGrid (Twilio) | 71 | 0.7% |
| ESP | SendPulse | 32 | 0.3% |
Cloudflare Email Routing's forwarding model creates an SPF consideration: if a domain's SPF record does not explicitly authorise Cloudflare's servers as a sender, forwarded mail may fail SPF checks at the destination. Senders using Cloudflare Email Routing must include Cloudflare's IP ranges in their SPF record; recipients should understand that mail will originate from Cloudflare's infrastructure rather than the sender's own servers.
See the full Cloudflare Email Routing data page (KPI cards, trend, sample domains) →
No, because Cloudflare Email Routing forwards mail to other providers' mailboxes rather than storing it as a final destination. If you use Cloudflare Email Routing on your own domain, ensure your SPF record permits Cloudflare's servers.
10,508 domains in the Tranco top-1M use Cloudflare Email Routing as their mailbox provider as of July 13, 2026 (1.60% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Cloudflare Email Routing accounts for 1.60% of domains with MX records in the top 1M. Whether you should seed a test mailbox there depends on how much of your audience it represents — the co-usage table above shows the services it appears alongside most.
Cloudflare Email Routing is growing — its share moved +0.04 pp over the last 30 days (as of July 13, 2026).
Cloudflare Email Routing's largest TLD is .com (43.7% of its domains); it appears across 381 TLDs in total.