According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Hetzner is the mailbox provider for 910 domains — 0.14% of 658,711 domains with MX records. Detection method: primary MX record (lowest preference).
Hetzner is a German hosting and infrastructure provider that operates mail services alongside its cloud and dedicated-server offerings. The company serves a broad international customer base, with particular concentration in German-speaking regions and Western Europe, where it is a standard choice for organisations managing their own IT infrastructure.
When Hetzner MX records appear in your delivery flows—predominantly from smaller organisations, regional businesses, and self-hosted mail operators—it signals a customer running mail directly on Hetzner's managed servers rather than delegating to a specialist email platform. This footprint pattern matters for deliverability because Hetzner-hosted mail typically lacks the consolidated reputation infrastructure of larger ESPs, making sender authentication, list quality, and domain reputation the critical factors in whether your mail reaches the inbox.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 1 | 0.1% |
| Top 100,000 | 38 | 4.2% |
| Top 1,000,000 | 663 | 72.9% |
| Unranked | 208 | 22.9% |
| TLD | Domains | Share | |
|---|---|---|---|
| .de | 339 | 37.3% | |
| .com | 233 | 25.6% | |
| .net | 48 | 5.3% | |
| .org | 35 | 3.8% | |
| .at | 32 | 3.5% | |
| .gr | 27 | 3.0% | |
| .eu | 26 | 2.9% | |
| .ch | 13 | 1.4% | |
| .app | 8 | 0.9% | |
| .pl | 8 | 0.9% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 910 domains.
| Type | Service | Domains | Share of Hetzner users |
|---|---|---|---|
| ESP | Constant Contact | 23 | 2.5% |
| ESP | Brevo (ex-Sendinblue) | 20 | 2.2% |
| ESP | Mailjet (Sinch) | 18 | 2.0% |
| ESP | Amazon SES | 17 | 1.9% |
| ESP | MailerSend | 10 | 1.1% |
| ESP | Mailchimp | 10 | 1.1% |
| ESP | Mailgun | 8 | 0.9% |
| ESP | SendPulse | 6 | 0.7% |
| ESP | Mandrill | 5 | 0.5% |
| ESP | Zendesk | 4 | 0.4% |
Hetzner's mail infrastructure is spread across thousands of independent customer installations—small businesses, regional firms, individual operators—rather than concentrated in a few high-volume accounts. This fragmentation means filtering systems do not typically apply shared-platform reputation acceleration to Hetzner IP ranges; instead, each customer's sender and domain reputation is evaluated independently. As a result, organisations using Hetzner for mail (whether transactional or marketing) must maintain full authentication (SPF, DKIM, DMARC) and build their own sending reputation without the trust-by-association benefit that consolidated providers offer.
See the full Hetzner data page (KPI cards, trend, sample domains) →
Testing against Hetzner is worthwhile if your audience includes German or Western European small-to-mid-market businesses, as they represent a realistic cross-section of independent inbox configurations and filtering behaviours rather than a unified platform policy.
910 domains in the Tranco top-1M use Hetzner as their mailbox provider as of July 13, 2026 (0.14% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Hetzner accounts for 0.14% 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.
Hetzner's largest TLD is .de (37.3% of its domains); it appears across 75 TLDs in total.