MailRoute mailbox provider
According to Live Direct Marketing's daily Tranco top-1M scan (September 21, 2026), MailRoute is the mailbox provider for 70 domains — 0.01% of 676,104 domains with MX records. Detection method: primary MX record (lowest preference).
Key facts
- 70 domains in the Tranco top-1M use MailRoute (0.01% of domains with MX records).
- Snapshot date: 2026-09-21 — recomputed every day.
- Strongest TLD: .com (48.6% of its domains).
- Region skew: Global / US-skewed.
- Most co-used service: Amazon SES.
- Directory category: email security gateway.
Why MailRoute appears in this category
US small/mid-market hosted email security.
We classify it as a email security gateway from primary MX record (lowest preference) matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
MailRoute is a mailbox provider that functions as a primary MX receiver for a subset of the top-1 million internet domains. It is commonly deployed by smaller and medium-sized organisations, concentrated in the .com namespace, with geographic skew toward the United States and other global markets.
For senders, MailRoute's long-tail distribution means its influence on deliverability is spread rather than concentrated; however, its frequent co-deployment with Amazon SES indicates it serves organisations using hybrid email stacks, making it a practical inclusion in representative testing and reputation monitoring portfolios.
Where MailRoute sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 1 | 1.4% |
| Top 100,000 | 2 | 2.9% |
| Top 1,000,000 | 65 | 92.9% |
| Unranked | 2 | 2.9% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 34 | 48.6% | |
| .org | 13 | 18.6% | |
| .net | 10 | 14.3% | |
| .ca | 3 | 4.3% | |
| .au | 2 | 2.9% | |
| .edu | 1 | 1.4% | |
| .com.br | 1 | 1.4% | |
| .fr | 1 | 1.4% | |
| .es | 1 | 1.4% | |
| .de | 1 | 1.4% |
What MailRoute users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 70 domains.
| Type | Service | Domains | Share of MailRoute users |
|---|---|---|---|
| ESP | Amazon SES | 4 | 5.7% |
| ESP | Campaign Monitor | 3 | 4.3% |
| ESP | HubSpot | 2 | 2.9% |
| ESP | Mandrill | 2 | 2.9% |
| ESP | MailChannels | 2 | 2.9% |
| ESP | SendGrid (Twilio) | 2 | 2.9% |
| ESP | Mailgun | 2 | 2.9% |
| ESP | Mailjet (Sinch) | 1 | 1.4% |
| ESP | MailerLite | 1 | 1.4% |
| ESP | Zoho ZeptoMail | 1 | 1.4% |
MailRoute within hybrid mail stacks
MailRoute frequently appears in hybrid mail architectures where organisations use it for inbound reception whilst routing outbound traffic through Amazon SES or similar services. This separation means authentication (SPF, DKIM, DMARC) must satisfy the receiver's own standards independently of any upstream relay provider. Senders reaching MailRoute recipients should verify authentication records and reputation against the receiver's configuration rather than assuming consistency with the organisation's outbound relay service.
See the full MailRoute data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Should I test email deliverability against MailRoute?
Yes, if your recipient base includes smaller to mid-market organisations in the .com space, particularly those in North America or globally distributed regions. MailRoute's presence in the Tranco top-1 million justifies inclusion in representative testing portfolios, though it is lower priority than dominant providers like Gmail or Outlook.
How many domains use MailRoute?
70 domains in the Tranco top-1M use MailRoute as their mailbox provider as of September 21, 2026 (0.01% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Is MailRoute common enough to affect email deliverability testing?
MailRoute accounts for 0.01% of domains with MX records 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 MailRoute most?
MailRoute's largest TLD is .com (48.6% of its domains); it appears across 13 TLDs in total.