Brevo (ex-Sendinblue) email service provider (ESP)
According to Live Direct Marketing's daily Tranco top-1M scan (September 12, 2026), Brevo (ex-Sendinblue) is the email service provider (ESP) for 9,361 domains — 1.49% of 629,828 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 9,361 domains in the Tranco top-1M use Brevo (ex-Sendinblue) (1.49% of SPF-publishing domains).
- Snapshot date: 2026-09-12 — recomputed every day.
- 30-day share change: +0.04 pp.
- Strongest TLD: .com (44.2% of its domains).
- Most co-used service: Google Workspace.
- Directory category: email service provider.
Why Brevo (ex-Sendinblue) appears in this category
French SMB ESP (rebranded from Sendinblue), strong in EU mid-market.
We classify it as a email service provider from include: mechanisms in the SPF record matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
Brevo (formerly Sendinblue) is a cloud-based email service provider that enables organisations to manage marketing automation, transactional email, and SMS communications. The platform relays outbound mail through its own infrastructure on behalf of customer domains.
From an email infrastructure perspective, Brevo's SPF footprint is concentrated in smaller and mid-market organisations rather than among the very largest global brands. The service is geographically diverse, appearing across many top-level domains and most commonly in .com registrations. It is frequently deployed alongside Google Workspace—suggesting significant adoption among organisations using Google's productivity suite—and its growing presence in SPF records indicates it is gaining adoption as a unified platform for both transactional and marketing email.
Where Brevo (ex-Sendinblue) sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 3 | 0.0% |
| Top 10,000 | 67 | 0.7% |
| Top 100,000 | 875 | 9.3% |
| Top 1,000,000 | 8,334 | 89.0% |
| Unranked | 82 | 0.9% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 4,136 | 44.2% | |
| .fr | 833 | 8.9% | |
| .de | 708 | 7.6% | |
| .org | 366 | 3.9% | |
| .it | 262 | 2.8% | |
| .net | 212 | 2.3% | |
| .nl | 172 | 1.8% | |
| .co.uk | 168 | 1.8% | |
| .io | 144 | 1.5% | |
| .com.br | 133 | 1.4% |
What Brevo (ex-Sendinblue) users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 9,361 domains.
| Type | Service | Domains | Share of Brevo (ex-Sendinblue) users |
|---|---|---|---|
| Mailbox | Google Workspace | 2,880 | 30.8% |
| Mailbox | Microsoft 365 | 2,504 | 26.7% |
| Mailbox | Self-Hosted | 1,082 | 11.6% |
| Mailbox | Unknown / Other | 482 | 5.1% |
| Mailbox | OVH Mail | 284 | 3.0% |
| Mailbox | Cloudflare Email Routing | 254 | 2.7% |
| ESP | Mailjet (Sinch) | 944 | 10.1% |
| ESP | Amazon SES | 874 | 9.3% |
| ESP | Zendesk | 710 | 7.6% |
| ESP | SendGrid (Twilio) | 632 | 6.8% |
Outbound reputation sharing and multi-tenant SPF implications
When an organisation uses Brevo for email delivery, its domain's SPF record includes Brevo's authorised sending mechanisms. Because Brevo is a multi-tenant platform serving many unrelated senders, outbound sending reputation can be shared across the customer base. If one customer sends mail that triggers complaints, blocks, or other negative signals, it may affect the shared infrastructure reputation that other customers depend on. Organisations using Brevo should monitor their own delivery metrics independently and consider whether a dedicated or isolated sending domain is warranted if reputation separation is critical to their operations.
See the full Brevo (ex-Sendinblue) data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Should I test email deliverability against Brevo?
If your recipients use Brevo as their email provider or if senders in your sector commonly rely on Brevo, testing your mail's acceptance against Brevo's infrastructure can reveal delivery issues specific to that platform. Brevo's filtering and reputation policies differ from consumer inboxes, so performance behaviour may vary accordingly.
How many domains use Brevo (ex-Sendinblue)?
9,361 domains in the Tranco top-1M use Brevo (ex-Sendinblue) as their email service provider (ESP) as of September 12, 2026 (1.49% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is Brevo (ex-Sendinblue) common enough to affect email deliverability testing?
Brevo (ex-Sendinblue) accounts for 1.49% of SPF-publishing domains in the top 1M. Whether you should seed a test mailbox there depends on how much of your audience it represents — the co-usage table above shows the services it appears alongside most.
Is Brevo (ex-Sendinblue) growing or declining?
Brevo (ex-Sendinblue) is growing — its share moved +0.04 pp over the last 30 days (as of September 12, 2026).
Which countries or TLDs use Brevo (ex-Sendinblue) most?
Brevo (ex-Sendinblue)'s largest TLD is .com (44.2% of its domains); it appears across 259 TLDs in total.