Maileroo email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), Maileroo is the email service provider (ESP) for 129 domains — 0.02% of 637,420 SPF-publishing domains. Its strongest TLD is .com (39.5% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-24 DNS snapshot.
What Maileroo represents in this dataset
Australian transactional email API and SMTP relay.
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 2026-09-24 snapshot shows about Maileroo
Across 51 distinct TLDs its top three are .com (39.5%), .net (4.7%), .co.uk (3.1%) — together 47.3% of the 129 domains, which makes the footprint moderately concentrated, with a recognisable home market. The service most often observed on the same domains is Generic / unmatched (mx*.*) (Mailbox, 34 domains, 26.4% of them), followed by Google Workspace (14.7%). 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 (2026-09-24); 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 Maileroo
What else the same 129 domains use — cross-tabulated from the same daily snapshot (2026-09-24).
| Type | Service | Domains | Share of Maileroo users |
|---|---|---|---|
| Mailbox | Generic / unmatched (mx*.*) | 34 | 26.4% |
| Mailbox | Google Workspace | 19 | 14.7% |
| Mailbox | Self-Hosted | 15 | 11.6% |
| Mailbox | Cloudflare Email Routing | 12 | 9.3% |
| Mailbox | Microsoft 365 | 10 | 7.8% |
| Mailbox | Zoho Mail (EU) | 5 | 3.9% |
| ESP | Cloudflare Email Routing | 14 | 10.9% |
| ESP | Mailjet (Sinch) | 13 | 10.1% |
| ESP | Zoho Mail EU (sender) | 5 | 3.9% |
| ESP | SendPulse | 5 | 3.9% |
TLD distribution (top 30 of 51)
Frequently asked questions
How many domains use Maileroo?
129 domains in the Tranco top-1M use Maileroo as their email service provider (ESP) as of September 24, 2026, according to Live Direct Marketing's daily DNS scan.
What is Maileroo's market share?
Maileroo holds 0.02% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-24). The number is recomputed every day.
What are the biggest alternatives to Maileroo?
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 2026-09-24).
Largest email service provider (ESP)s in this category
Amazon SES (6.23%) · SendGrid (Twilio) (4.68%) · Mailgun (4.01%) · Zendesk (3.77%) · Mailchimp (3.61%) · Mandrill (3.26%) · HubSpot (3.18%) · Salesforce (2.57%) · Mailjet (Sinch) (2.14%) · Cloudflare Email Routing (1.96%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 129 domains.