Maileroo email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 10, 2026), Maileroo is the email service provider (ESP) for 124 domains — 0.02% of 632,322 SPF-publishing domains. Its strongest TLD is .com (40.3% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-10 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 2026-09-10 snapshot shows about Maileroo
Across 46 distinct TLDs its top three are .com (40.3%), .net (4.0%), .io (4.0%) — together 48.4% of the 124 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, 25 domains, 20.2% of them), followed by Google Workspace (19.4%). 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 (2026-09-10); 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 124 domains use — cross-tabulated from the same daily snapshot (2026-09-10).
| Type | Service | Domains | Share of Maileroo users |
|---|---|---|---|
| Mailbox | Generic / unmatched (mx*.*) | 25 | 20.2% |
| Mailbox | Google Workspace | 24 | 19.4% |
| Mailbox | Self-Hosted | 16 | 12.9% |
| Mailbox | Cloudflare Email Routing | 10 | 8.1% |
| Mailbox | Microsoft 365 | 9 | 7.3% |
| Mailbox | Zoho Mail (EU) | 6 | 4.8% |
| ESP | Mailjet (Sinch) | 14 | 11.3% |
| ESP | Cloudflare Email Routing | 12 | 9.7% |
| ESP | Zoho Mail EU (sender) | 6 | 4.8% |
| ESP | SendGrid (Twilio) | 5 | 4.0% |
TLD distribution (top 30 of 46)
Frequently asked questions
How many domains use Maileroo?
124 domains in the Tranco top-1M use Maileroo as their email service provider (ESP) as of September 10, 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 2026-09-10). 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 2026-09-10).
Largest email service provider (ESP)s in this category
Amazon SES (6.15%) · SendGrid (Twilio) (4.62%) · Mailgun (4.00%) · Zendesk (3.75%) · Mailchimp (3.56%) · Mandrill (3.24%) · HubSpot (3.09%) · Salesforce (2.54%) · Mailjet (Sinch) (2.11%) · Cloudflare Email Routing (1.93%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 124 domains.