Clean MX email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), Clean MX is the email service provider (ESP) for 219 domains — 0.03% of 637,420 SPF-publishing domains. Its strongest TLD is .pt (49.8% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-24 DNS snapshot.
What Clean MX represents in this dataset
Clean MX — Portuguese email security gateway.
Directory category: Gateway. The classification comes from include: mechanisms in the SPF record. 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 Clean MX
Across 10 distinct TLDs its top three are .pt (49.8%), .com (38.8%), .net (5.5%) — together 94.1% of the 219 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 Clean MX (Mailbox, 99 domains, 45.2% of them), followed by Self-Hosted (35.6%). Directly comparable by the same detection rule: Amazon SES, SendGrid (Twilio), Mailgun. 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 include: mechanisms in the SPF record rule, which is an infrastructure fact, not a commercial relationship.
Commonly used together with Clean MX
What else the same 219 domains use — cross-tabulated from the same daily snapshot (2026-09-24).
| Type | Service | Domains | Share of Clean MX users |
|---|---|---|---|
| Mailbox | Clean MX | 99 | 45.2% |
| Mailbox | Self-Hosted | 78 | 35.6% |
| Mailbox | Microsoft 365 | 23 | 10.5% |
| Mailbox | Google Workspace | 8 | 3.7% |
| Mailbox | Unknown / Other | 6 | 2.7% |
| Mailbox | Generic / unmatched (mail.*) | 1 | 0.5% |
| ESP | KMITD (TH) | 32 | 14.6% |
| ESP | Mailchimp | 9 | 4.1% |
| ESP | Mailjet (Sinch) | 8 | 3.7% |
| ESP | Brevo (ex-Sendinblue) | 6 | 2.7% |
TLD distribution (top 10 of 10)
Frequently asked questions
How many domains use Clean MX?
219 domains in the Tranco top-1M use Clean MX as their email service provider (ESP) as of September 24, 2026, according to Live Direct Marketing's daily DNS scan.
What is Clean MX's market share?
Clean MX holds 0.03% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-24). The number is recomputed every day.
What are the biggest alternatives to Clean MX?
The largest email service provider (ESP)s in the same category by Tranco top-1M share are: Amazon SES, SendGrid (Twilio), Mailgun, Zendesk, Mailchimp (as of 2026-09-24).
Largest email service provider (ESP)s in this category
Amazon SES (6.23%) · SendGrid (Twilio) (4.68%) · Mailgun (4.01%) · Zendesk (3.77%) · Mailchimp (3.61%) · Mandrill (3.26%) · HubSpot (3.18%) · Salesforce (2.57%) · Mailjet (Sinch) (2.14%) · Cloudflare Email Routing (1.96%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 219 domains.