MailerSend email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 13, 2026), MailerSend is the email service provider (ESP) for 1,940 domains — 0.31% of 628,913 SPF-publishing domains. Its strongest TLD is .com (41.3% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-13 DNS snapshot.
What MailerSend represents in this dataset
Transactional email API by MailerLite team.
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 MailerSend
Across 173 distinct TLDs its top three are .com (41.3%), .org (4.6%), .com.br (3.9%) — together 49.7% of the 1,940 domains, which makes the footprint moderately concentrated, with a recognisable home market. The service most often observed on the same domains is Google Workspace (Mailbox, 696 domains, 35.9% of them), followed by Microsoft 365 (20.7%). 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 MailerSend
What else the same 1,940 domains use — cross-tabulated from the same daily snapshot (2026-09-13).
| Type | Service | Domains | Share of MailerSend users |
|---|---|---|---|
| Mailbox | Google Workspace | 696 | 35.9% |
| Mailbox | Microsoft 365 | 401 | 20.7% |
| Mailbox | Self-Hosted | 253 | 13.0% |
| Mailbox | Unknown / Other | 73 | 3.8% |
| Mailbox | Cloudflare Email Routing | 43 | 2.2% |
| Mailbox | Zoho Mail | 41 | 2.1% |
| ESP | MailerLite | 322 | 16.6% |
| ESP | Amazon SES | 159 | 8.2% |
| ESP | Mailgun | 150 | 7.7% |
| ESP | Mailjet (Sinch) | 111 | 5.7% |
TLD distribution (top 30 of 173)
Frequently asked questions
How many domains use MailerSend?
1,940 domains in the Tranco top-1M use MailerSend as their email service provider (ESP) as of September 13, 2026, according to Live Direct Marketing's daily DNS scan.
What is MailerSend's market share?
MailerSend holds 0.31% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-13). The number is recomputed every day.
What are the biggest alternatives to MailerSend?
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%) · Mailjet (Sinch) (2.12%) · Cloudflare Email Routing (1.95%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 1,940 domains.