Mailtrap email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), Mailtrap is the email service provider (ESP) for 494 domains — 0.08% of 637,420 SPF-publishing domains. Its strongest TLD is .com (43.9% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-24 DNS snapshot.
What Mailtrap represents in this dataset
Mailtrap — email testing & sending API.
Directory category: Esp. 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 Mailtrap
Across 100 distinct TLDs its top three are .com (43.9%), .org (3.8%), .com.br (3.6%) — together 51.4% of the 494 domains, which makes the footprint moderately concentrated, with a recognisable home market. The service most often observed on the same domains is Google Workspace (Mailbox, 169 domains, 34.2% of them), followed by Microsoft 365 (19.2%). 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 Mailtrap
What else the same 494 domains use — cross-tabulated from the same daily snapshot (2026-09-24).
| Type | Service | Domains | Share of Mailtrap users |
|---|---|---|---|
| Mailbox | Google Workspace | 169 | 34.2% |
| Mailbox | Microsoft 365 | 95 | 19.2% |
| Mailbox | Self-Hosted | 56 | 11.3% |
| Mailbox | Unknown / Other | 23 | 4.7% |
| Mailbox | Zoho Mail | 16 | 3.2% |
| Mailbox | Generic / unmatched (mx*.*) | 11 | 2.2% |
| ESP | Amazon SES | 54 | 10.9% |
| ESP | Zendesk | 33 | 6.7% |
| ESP | Mailgun | 30 | 6.1% |
| ESP | HubSpot | 27 | 5.5% |
TLD distribution (top 30 of 100)
Frequently asked questions
How many domains use Mailtrap?
494 domains in the Tranco top-1M use Mailtrap as their email service provider (ESP) as of September 24, 2026, according to Live Direct Marketing's daily DNS scan.
What is Mailtrap's market share?
Mailtrap holds 0.08% 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 Mailtrap?
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 494 domains.