SendClean email service provider (ESP)
According to Live Direct Marketing's daily Tranco top-1M scan (September 12, 2026), SendClean is the email service provider (ESP) for 180 domains — 0.03% of 629,828 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 180 domains in the Tranco top-1M use SendClean (0.03% of SPF-publishing domains).
- Snapshot date: 2026-09-12 — recomputed every day.
- Strongest TLD: .com (42.2% of its domains).
- Most co-used service: Microsoft 365.
- Directory category: email service provider.
Why SendClean appears in this category
Indian transactional+marketing email API (sendclean.net).
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.
SendClean is an email service provider that delivers transactional and marketing email on behalf of organisations, and is identified in email authentication records via Sender Policy Framework (SPF) include mechanisms that appear across thousands of domains worldwide.
SendClean serves predominantly smaller and mid-market organisations rather than enterprise brands, with a customer base distributed internationally across multiple top-level domains, concentrated particularly on .com registrations. The platform commonly appears in SPF records alongside Microsoft 365 configurations, reflecting its role as a supplementary email service for organisations that have standardised on Microsoft's email platform.
Where SendClean sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 3 | 1.7% |
| Top 100,000 | 37 | 20.6% |
| Top 1,000,000 | 140 | 77.8% |
| Unranked | 0 | 0.0% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 76 | 42.2% | |
| .com.co | 26 | 14.4% | |
| .co | 26 | 14.4% | |
| .in | 17 | 9.4% | |
| .cl | 7 | 3.9% | |
| .pe | 5 | 2.8% | |
| .com.bd | 5 | 2.8% | |
| .com.pe | 3 | 1.7% | |
| .net | 3 | 1.7% | |
| .org | 2 | 1.1% |
What SendClean users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 180 domains.
| Type | Service | Domains | Share of SendClean users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 70 | 38.9% |
| Mailbox | Google Workspace | 46 | 25.6% |
| Mailbox | Self-Hosted | 10 | 5.6% |
| Mailbox | Unknown / Other | 6 | 3.3% |
| Mailbox | Proofpoint | 4 | 2.2% |
| Mailbox | Trend Micro | 4 | 2.2% |
| ESP | Masiv | 92 | 51.1% |
| ESP | Amazon SES | 22 | 12.2% |
| ESP | Mailgun | 11 | 6.1% |
| ESP | Salesforce | 9 | 5.0% |
SPF Include Mechanisms and Shared Infrastructure
SendClean is deployed as an SPF include mechanism, allowing organisations to authorise it without hardcoding IP addresses into their domain's SPF record. Because SendClean operates shared infrastructure serving many customers, an organisation's email reputation and deliverability depend partly on the sending practices of other SendClean users—a characteristic of shared ESP infrastructure that becomes more significant when SendClean is one of several mail services authorised for a domain.
See the full SendClean data page (KPI cards, trend, sample domains) →
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Frequently asked questions
What is SendClean?
SendClean is an email service provider used primarily by smaller organisations to send transactional and marketing email. It is deployed via SPF include mechanisms and is commonly used alongside Microsoft 365 environments.
How many domains use SendClean?
180 domains in the Tranco top-1M use SendClean as their email service provider (ESP) as of September 12, 2026 (0.03% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is SendClean common enough to affect email deliverability testing?
SendClean accounts for 0.03% 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.
Which countries or TLDs use SendClean most?
SendClean's largest TLD is .com (42.2% of its domains); it appears across 20 TLDs in total.