Generic / unmatched (mx*.*) email provider statistics and deliverability context
← Email Stats homemailbox
According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), Generic / unmatched (mx*.*) is the mailbox provider for 17,111 domains — 2.53% of 675,489 domains with MX records. Over the last 30 days its share declined by 0.04 pp, and -6.35 pp year-over-year. Its strongest TLD is .com (29.8% of its domains). Detection: primary MX record (lowest preference).
Last updated from the 2026-09-24 DNS snapshot.
What Generic / unmatched (mx*.*) represents in this dataset
Hosts named "mx*.<apex>" not matching a known operator. Likely self-hosted or niche provider.
Directory category: Generic. 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 Generic / unmatched (mx*.*)
Across 371 distinct TLDs its top three are .com (29.8%), .de (7.2%), .net (6.4%) — together 43.3% of the 17,111 domains, which makes the footprint moderately concentrated, with a recognisable home market. The service most often observed on the same domains is Amazon SES (ESP, 387 domains, 2.3% of them), followed by SendGrid (Twilio) (1.9%). Its share of domains with MX records moved -0.04 pp in 30 days — inside the daily noise of list rotation. Year-over-year the share is -6.35 pp, so the 30-day move is consistent with the longer trend. 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 Generic / unmatched (mx*.*)
What else the same 17,111 domains use — cross-tabulated from the same daily snapshot (2026-09-24).
| Type | Service | Domains | Share of Generic / unmatched (mx*.*) users |
|---|---|---|---|
| ESP | Amazon SES | 387 | 2.3% |
| ESP | SendGrid (Twilio) | 319 | 1.9% |
| ESP | Mailchimp | 319 | 1.9% |
| ESP | Netcore Cloud (Pepipost) | 311 | 1.8% |
| ESP | Mailgun | 303 | 1.8% |
| ESP | Mailjet (Sinch) | 268 | 1.6% |
| ESP | Mandrill | 253 | 1.5% |
| ESP | Zendesk | 231 | 1.4% |
| ESP | Brevo (ex-Sendinblue) | 196 | 1.1% |
| ESP | Unisender (RU) | 150 | 0.9% |
TLD distribution (top 30 of 371)
Frequently asked questions
How many domains use Generic / unmatched (mx*.*)?
17,111 domains in the Tranco top-1M use Generic / unmatched (mx*.*) as their mailbox provider as of September 24, 2026, according to Live Direct Marketing's daily DNS scan.
What is Generic / unmatched (mx*.*)'s market share?
Generic / unmatched (mx*.*) holds 2.53% of domains with MX records in the Tranco top-1M (snapshot of 2026-09-24). The number is recomputed every day.
Is Generic / unmatched (mx*.*) growing or declining?
Generic / unmatched (mx*.*)'s share declined by 0.04 percentage points over the last 30 days (as of September 24, 2026).
What are the biggest alternatives to Generic / unmatched (mx*.*)?
The largest mailbox providers in the same category by Tranco top-1M share are: Self-Hosted, Google Workspace, Microsoft 365, Unknown / Other, Generic / unmatched (mail.*) (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 (mail.*) (1.93%) · Proofpoint (1.86%) · Cloudflare Email Routing (1.76%) · Yandex 360 (1.67%) · Mimecast (1.47%) · Hostinger (1.12%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 17,111 domains.