MailerLite email service provider (ESP)
According to Live Direct Marketing's daily Tranco top-1M scan (September 17, 2026), MailerLite is the email service provider (ESP) for 6,577 domains — 1.03% of 635,547 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 6,577 domains in the Tranco top-1M use MailerLite (1.03% of SPF-publishing domains).
- Snapshot date: 2026-09-17 — recomputed every day.
- Strongest TLD: .com (43.5% of its domains).
- Most co-used service: Google Workspace.
- Directory category: email service provider.
Why MailerLite appears in this category
Email marketing platform using mlsend.com for SPF authentication.
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.
What the data shows
89.2% of its domains sit outside the top 100,000 — a long-tail footprint spread across smaller sites. It spans 232 TLDs, led by .com (43.5%) — a broad, internationally distributed base. The service most often seen alongside it is Google Workspace (mailbox provider), on 39.2% of its domains.
Where MailerLite sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 1 | 0.0% |
| Top 10,000 | 52 | 0.8% |
| Top 100,000 | 574 | 8.7% |
| Top 1,000,000 | 5,866 | 89.2% |
| Unranked | 84 | 1.3% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 2,861 | 43.5% | |
| .pl | 541 | 8.2% | |
| .org | 306 | 4.7% | |
| .lt | 168 | 2.6% | |
| .net | 137 | 2.1% | |
| .io | 134 | 2.0% | |
| .hu | 122 | 1.9% | |
| .co.uk | 119 | 1.8% | |
| .nl | 119 | 1.8% | |
| .eu | 92 | 1.4% |
What MailerLite users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 6,577 domains.
| Type | Service | Domains | Share of MailerLite users |
|---|---|---|---|
| Mailbox | Google Workspace | 2,578 | 39.2% |
| Mailbox | Microsoft 365 | 1,263 | 19.2% |
| Mailbox | Self-Hosted | 1,027 | 15.6% |
| Mailbox | Unknown / Other | 399 | 6.1% |
| Mailbox | Generic / unmatched (mx*.*) | 112 | 1.7% |
| Mailbox | Zoho Mail | 96 | 1.5% |
| ESP | Amazon SES | 589 | 9.0% |
| ESP | Mailchimp | 466 | 7.1% |
| ESP | Mailgun | 420 | 6.4% |
| ESP | SendGrid (Twilio) | 371 | 5.6% |
See the full MailerLite data page (KPI cards, trend, sample domains) →
Run a free inbox-placement test across Gmail, Outlook, Yahoo and more — see exactly where your mail lands and why.
Frequently asked questions
How many domains use MailerLite?
6,577 domains in the Tranco top-1M use MailerLite as their email service provider (ESP) as of September 17, 2026 (1.03% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is MailerLite common enough to affect email deliverability testing?
MailerLite accounts for 1.03% 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 MailerLite most?
MailerLite's largest TLD is .com (43.5% of its domains); it appears across 232 TLDs in total.