According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), pair Networks is the mailbox provider for 342 domains — 0.05% of 658,711 domains with MX records. Detection method: primary MX record (lowest preference).
Pair Networks is a mailbox provider offering email hosting for a range of registered domains. When a domain lists Pair Networks as its primary MX record, inbound mail is routed to and stored on Pair Networks' infrastructure.
Across the Tranco top-1M list, Pair Networks appears predominantly among smaller websites rather than enterprise brands, with notable concentration in the .com namespace and a global but US-skewed geographic footprint. The provider frequently co-occurs with SendGrid (Twilio) in domain configurations, suggesting many smaller organisations use Pair Networks for inbound mail whilst delegating outbound campaigns to a specialist sender. For deliverability practitioners, this pattern indicates that Pair Networks handles mail for a distinct tier: established but smaller-scale operators.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 1 | 0.3% |
| Top 100,000 | 27 | 7.9% |
| Top 1,000,000 | 266 | 77.8% |
| Unranked | 48 | 14.0% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 227 | 66.4% | |
| .org | 67 | 19.6% | |
| .net | 25 | 7.3% | |
| .info | 4 | 1.2% | |
| .co.uk | 3 | 0.9% | |
| .ph | 1 | 0.3% | |
| .contractors | 1 | 0.3% | |
| .pk | 1 | 0.3% | |
| .zw | 1 | 0.3% | |
| .com.au | 1 | 0.3% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 342 domains.
| Type | Service | Domains | Share of pair Networks users |
|---|---|---|---|
| ESP | SendGrid (Twilio) | 11 | 3.2% |
| ESP | Mailchimp | 8 | 2.3% |
| ESP | Amazon SES | 6 | 1.8% |
| ESP | Zendesk | 4 | 1.2% |
| ESP | Constant Contact | 3 | 0.9% |
| ESP | SendPulse | 2 | 0.6% |
| ESP | MailerSend | 2 | 0.6% |
| ESP | Zoho Campaigns | 2 | 0.6% |
| ESP | Freshworks Freshmarketer | 2 | 0.6% |
| ESP | Salesforce | 2 | 0.6% |
Pair Networks represents a different class of mail provider than webmail giants: smaller, independent, and used by organisations that often delegate sending to specialist platforms like SendGrid. For senders, this means that core authentication (SPF, DKIM, DMARC) and domain reputation become more critical to inbox placement, as Pair Networks does not employ the algorithmic filtering sophistication of Gmail or Microsoft 365. Testing against Pair Networks is therefore a useful way to validate that authentication and reputation configuration are correct.
See the full pair Networks data page (KPI cards, trend, sample domains) →
Yes, Pair Networks is useful for testing because it serves smaller organisations and lacks the algorithmic filtering of major webmail platforms. Delivery issues there typically point to authentication or reputation problems rather than content filtering, making it a reliable diagnostic tool for email infrastructure.
342 domains in the Tranco top-1M use pair Networks as their mailbox provider as of July 13, 2026 (0.05% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
pair Networks accounts for 0.05% 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.
pair Networks's largest TLD is .com (66.4% of its domains); it appears across 21 TLDs in total.