Strato (DE) email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), Strato (DE) is the mailbox provider for 1,363 domains — 0.20% of 675,489 domains with MX records. Its strongest TLD is .de (60.6% of its domains). Detection: primary MX record (lowest preference).
Last updated from the 2026-09-24 DNS snapshot.
What Strato (DE) represents in this dataset
United Internet brand, mass-market German hosting + mail.
Directory category: Hosting. The classification comes from primary MX record (lowest preference). It describes observed DNS infrastructure, not a commercial relationship and not the placement of any individual message.
What the 2026-09-24 snapshot shows about Strato (DE)
Across 48 distinct TLDs its top three are .de (60.6%), .com (18.9%), .net (4.6%) — together 84.2% of the 1,363 domains, which makes the footprint narrow — three TLDs cover most of it, which is typical of a regional or single-market operator. The service most often observed on the same domains is Mailgun (ESP, 16 domains, 1.2% of them), followed by Zendesk (1.0%). Directly comparable by the same detection rule: Self-Hosted, Google Workspace, Microsoft 365. Ranking between them reflects what is published in DNS, not delivery quality or volume sent. All figures come from a single daily DNS snapshot (2026-09-24); a domain appears here when its published records match the primary MX record (lowest preference) rule, which is an infrastructure fact, not a commercial relationship.
Commonly used together with Strato (DE)
What else the same 1,363 domains use — cross-tabulated from the same daily snapshot (2026-09-24).
| Type | Service | Domains | Share of Strato (DE) users |
|---|---|---|---|
| ESP | Mailgun | 16 | 1.2% |
| ESP | Zendesk | 14 | 1.0% |
| ESP | Amazon SES | 11 | 0.8% |
| ESP | Mailjet (Sinch) | 11 | 0.8% |
| ESP | Brevo (ex-Sendinblue) | 8 | 0.6% |
| ESP | Constant Contact | 7 | 0.5% |
| ESP | Newsletter2Go (Brevo) | 5 | 0.4% |
| ESP | MailerLite | 5 | 0.4% |
| ESP | Mandrill | 4 | 0.3% |
| ESP | Turbo-SMTP | 3 | 0.2% |
TLD distribution (top 30 of 48)
Frequently asked questions
How many domains use Strato (DE)?
1,363 domains in the Tranco top-1M use Strato (DE) as their mailbox provider as of September 24, 2026, according to Live Direct Marketing's daily DNS scan.
What is Strato (DE)'s market share?
Strato (DE) holds 0.20% of domains with MX records in the Tranco top-1M (snapshot of 2026-09-24). The number is recomputed every day.
What are the biggest alternatives to Strato (DE)?
The largest mailbox providers in the same category by Tranco top-1M share are: Self-Hosted, Google Workspace, Microsoft 365, Unknown / Other, Generic / unmatched (mx*.*) (as of 2026-09-24).
Largest mailbox providers in this category
Self-Hosted (22.56%) · Google Workspace (21.58%) · Microsoft 365 (17.03%) · Unknown / Other (6.68%) · Generic / unmatched (mx*.*) (2.53%) · Generic / unmatched (mail.*) (1.93%) · Proofpoint (1.86%) · Cloudflare Email Routing (1.76%) · Yandex 360 (1.67%) · Mimecast (1.47%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 1,363 domains.