MailerLite email service provider (ESP)
According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), MailerLite is the email service provider (ESP) for 6,560 domains — 1.03% of 637,420 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 6,560 domains in the Tranco top-1M use MailerLite (1.03% of SPF-publishing domains).
- Snapshot date: 2026-09-24 — 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
89.7% of its domains sit outside the top 100,000 — a long-tail footprint spread across smaller sites. It spans 235 TLDs, led by .com (43.5%) — a broad, internationally distributed base. The service most often seen alongside it is Google Workspace (mailbox provider), on 39.1% 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 | 567 | 8.6% |
| Top 1,000,000 | 5,882 | 89.7% |
| Unranked | 58 | 0.9% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 2,852 | 43.5% | |
| .pl | 534 | 8.1% | |
| .org | 310 | 4.7% | |
| .lt | 162 | 2.5% | |
| .net | 139 | 2.1% | |
| .io | 136 | 2.1% | |
| .nl | 124 | 1.9% | |
| .hu | 118 | 1.8% | |
| .co.uk | 113 | 1.7% | |
| .eu | 88 | 1.3% |
What MailerLite users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 6,560 domains.
| Type | Service | Domains | Share of MailerLite users |
|---|---|---|---|
| Mailbox | Google Workspace | 2,564 | 39.1% |
| Mailbox | Microsoft 365 | 1,266 | 19.3% |
| Mailbox | Self-Hosted | 1,029 | 15.7% |
| Mailbox | Unknown / Other | 383 | 5.8% |
| Mailbox | Generic / unmatched (mx*.*) | 106 | 1.6% |
| Mailbox | Zoho Mail | 98 | 1.5% |
| ESP | Amazon SES | 585 | 8.9% |
| ESP | Mailchimp | 471 | 7.2% |
| ESP | Mailgun | 417 | 6.4% |
| ESP | SendGrid (Twilio) | 370 | 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?
6,560 domains in the Tranco top-1M use MailerLite as their email service provider (ESP) as of September 24, 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 235 TLDs in total.