Mailgun (inbound) email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 10, 2026), Mailgun (inbound) is the mailbox provider for 2,126 domains — 0.32% of 667,099 domains with MX records. Over the last 30 days its share declined by 0.02 pp. Its strongest TLD is .com (48.9% of its domains). Detection: primary MX record (lowest preference).
Last updated from the 2026-09-10 DNS snapshot.
What Mailgun (inbound) represents in this dataset
Mailgun inbound routing API for receiving.
Directory category: Esp. 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 2026-09-10 snapshot shows about Mailgun (inbound)
Across 191 distinct TLDs its top three are .com (48.9%), .org (6.4%), .net (5.9%) — together 61.2% of the 2,126 domains, which makes the footprint moderately concentrated, with a recognisable home market. The service most often observed on the same domains is Mailgun (ESP, 1,926 domains, 90.6% of them), followed by Amazon SES (3.0%). Its share of domains with MX records moved -0.02 pp in 30 days — inside the daily noise of list rotation. 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 (2026-09-10); 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 Mailgun (inbound)
What else the same 2,126 domains use — cross-tabulated from the same daily snapshot (2026-09-10).
| Type | Service | Domains | Share of Mailgun (inbound) users |
|---|---|---|---|
| ESP | Mailgun | 1,926 | 90.6% |
| ESP | Amazon SES | 63 | 3.0% |
| ESP | Zendesk | 50 | 2.4% |
| ESP | SendGrid (Twilio) | 38 | 1.8% |
| ESP | Mandrill | 34 | 1.6% |
| ESP | Mailchimp | 33 | 1.6% |
| ESP | Mailjet (Sinch) | 28 | 1.3% |
| ESP | Elastic Email | 19 | 0.9% |
| ESP | Help Scout | 18 | 0.8% |
| ESP | Campaign Monitor | 16 | 0.8% |
TLD distribution (top 30 of 191)
Frequently asked questions
How many domains use Mailgun (inbound)?
2,126 domains in the Tranco top-1M use Mailgun (inbound) as their mailbox provider as of September 10, 2026, according to Live Direct Marketing's daily DNS scan.
What is Mailgun (inbound)'s market share?
Mailgun (inbound) holds 0.32% of domains with MX records in the Tranco top-1M (snapshot of 2026-09-10). The number is recomputed every day.
Is Mailgun (inbound) growing or declining?
Mailgun (inbound)'s share declined by 0.02 percentage points over the last 30 days (as of September 10, 2026).
What are the biggest alternatives to Mailgun (inbound)?
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 2026-09-10).
Largest mailbox providers in this category
Self-Hosted (22.49%) · Google Workspace (21.64%) · Microsoft 365 (16.95%) · Unknown / Other (6.58%) · Generic / unmatched (mx*.*) (2.53%) · Generic / unmatched (mail.*) (1.94%) · Proofpoint (1.88%) · Cloudflare Email Routing (1.74%) · Yandex 360 (1.61%) · Mimecast (1.46%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 2,126 domains.