Mailjet (Sinch) email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 13, 2026), Mailjet (Sinch) is the email service provider (ESP) for 13,352 domains — 2.12% of 628,913 SPF-publishing domains. Over the last 30 days its share grew by 0.01 pp. Its strongest TLD is .com (40.8% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-13 DNS snapshot.
What Mailjet (Sinch) represents in this dataset
France-origin transactional+marketing ESP, now Sinch group.
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 2026-09-13 snapshot shows about Mailjet (Sinch)
Across 300 distinct TLDs its top three are .com (40.8%), .fr (11.2%), .de (9.0%) — together 61.0% of the 13,352 domains, which makes the footprint moderately concentrated, with a recognisable home market. The service most often observed on the same domains is Microsoft 365 (Mailbox, 4,231 domains, 31.7% of them), followed by Google Workspace (25.5%). Its share of SPF-publishing domains moved +0.01 pp in 30 days — inside the daily noise of list rotation. 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 (2026-09-13); 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 Mailjet (Sinch)
What else the same 13,352 domains use — cross-tabulated from the same daily snapshot (2026-09-13).
| Type | Service | Domains | Share of Mailjet (Sinch) users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 4,231 | 31.7% |
| Mailbox | Google Workspace | 3,401 | 25.5% |
| Mailbox | Self-Hosted | 1,237 | 9.3% |
| Mailbox | Unknown / Other | 910 | 6.8% |
| Mailbox | OVH Mail | 520 | 3.9% |
| Mailbox | Generic / unmatched (mx*.*) | 257 | 1.9% |
| ESP | Amazon SES | 1,270 | 9.5% |
| ESP | Zendesk | 1,138 | 8.5% |
| ESP | SendGrid (Twilio) | 973 | 7.3% |
| ESP | Mandrill | 953 | 7.1% |
TLD distribution (top 30 of 300)
Frequently asked questions
How many domains use Mailjet (Sinch)?
13,352 domains in the Tranco top-1M use Mailjet (Sinch) as their email service provider (ESP) as of September 13, 2026, according to Live Direct Marketing's daily DNS scan.
What is Mailjet (Sinch)'s market share?
Mailjet (Sinch) holds 2.12% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-13). The number is recomputed every day.
Is Mailjet (Sinch) growing or declining?
Mailjet (Sinch)'s share grew by 0.01 percentage points over the last 30 days (as of September 13, 2026).
What are the biggest alternatives to Mailjet (Sinch)?
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 2026-09-13).
Largest email service provider (ESP)s in this category
Amazon SES (6.19%) · SendGrid (Twilio) (4.64%) · Mailgun (4.01%) · Zendesk (3.77%) · Mailchimp (3.57%) · Mandrill (3.25%) · HubSpot (3.12%) · Salesforce (2.55%) · Cloudflare Email Routing (1.95%) · Brevo (ex-Sendinblue) (1.48%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 13,352 domains.