According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), HostedMXserver is the mailbox provider for 844 domains — 0.13% of 658,711 domains with MX records. Detection method: primary MX record (lowest preference).
HostedMXserver is an MX hosting service that manages incoming mail for websites across the Tranco top-1 million domain registry. It is predominantly deployed by smaller business sites and regional properties rather than large global brands, with concentration in the .com domain space.
The service's footprint in the long tail of smaller sites — rather than among the largest or most formalised organisations — has direct implications for email deliverability. Senders communicating with HostedMXserver users often encounter less standardised infrastructure, variable authentication support, and reputation systems that lack the visibility and stability of tier-1 mailbox providers, requiring more careful validation and monitoring when targeting these properties.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 2 | 0.2% |
| Top 100,000 | 28 | 3.3% |
| Top 1,000,000 | 420 | 49.8% |
| Unranked | 394 | 46.7% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 551 | 65.3% | |
| .net | 45 | 5.3% | |
| .xyz | 28 | 3.3% | |
| .top | 27 | 3.2% | |
| .org | 19 | 2.3% | |
| .cc | 18 | 2.1% | |
| .de | 10 | 1.2% | |
| .info | 8 | 0.9% | |
| .science | 7 | 0.8% | |
| .biz | 7 | 0.8% |
HostedMXserver's prevalence among smaller business sites and regional properties means incoming mail encounters highly variable authentication enforcement. Whilst tier-1 centralised platforms enforce sender policy framework (SPF), domain-based message authentication, reporting and conformance (DMARC), and DomainKeys identified mail (DKIM) with little deviation, HostedMXserver installations often show inconsistent adoption — some requiring strict authentication, others accepting unauthenticated mail. This variance necessitates that senders maintain robust compliance across all three mechanisms rather than optimising for a single provider's typical stance.
See the full HostedMXserver data page (KPI cards, trend, sample domains) →
Testing against HostedMXserver is useful if your audience includes smaller or regional .com sites, as its long-tail user base often exhibits variable authentication and filtering that larger providers do not. Include it in a broader test suite to validate your infrastructure handles inconsistent adoption of SPF, DKIM, and DMARC.
844 domains in the Tranco top-1M use HostedMXserver as their mailbox provider as of July 13, 2026 (0.13% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
HostedMXserver accounts for 0.13% 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.
HostedMXserver's largest TLD is .com (65.3% of its domains); it appears across 69 TLDs in total.