According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), MailHostBox is the mailbox provider for 597 domains — 0.09% of 658,711 domains with MX records. Detection method: primary MX record (lowest preference).
MailHostBox is a mailbox provider whose infrastructure appears as a primary MX record across sites in the Tranco top-1M domain list. It functions as an external mail-handling service for websites requiring dedicated email hosting, positioning itself alongside other third-party mailbox platforms with a distinct deployment footprint across the web.
MailHostBox's presence concentrates in the .com namespace and skews toward smaller and mid-sized websites rather than the largest consumer or enterprise brands, with a global distribution weighted toward North America. For senders, this means a material fraction of legitimate business email routes through MailHostBox; for receivers and deliverability teams, understanding its filtering behaviour and acceptance policies is primarily relevant when targeting the small-to-medium-business segment rather than mass-market distribution.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 3 | 0.5% |
| Top 100,000 | 42 | 7.0% |
| Top 1,000,000 | 452 | 75.7% |
| Unranked | 100 | 16.8% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 291 | 48.7% | |
| .in | 102 | 17.1% | |
| .net | 54 | 9.0% | |
| .org | 30 | 5.0% | |
| .co.in | 29 | 4.9% | |
| .co | 13 | 2.2% | |
| .mn | 11 | 1.8% | |
| .info | 6 | 1.0% | |
| .biz | 4 | 0.7% | |
| .me | 4 | 0.7% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 597 domains.
| Type | Service | Domains | Share of MailHostBox users |
|---|---|---|---|
| ESP | MailHostBox | 485 | 81.2% |
| ESP | Elastic Email | 9 | 1.5% |
| ESP | LogicBoxes OrderBox | 9 | 1.5% |
| ESP | Endurance/Newfold Cloudfilter | 6 | 1.0% |
| ESP | Amazon SES | 4 | 0.7% |
| ESP | SMTP.com | 4 | 0.7% |
| ESP | Customer.io | 4 | 0.7% |
| ESP | Brevo (ex-Sendinblue) | 3 | 0.5% |
| ESP | SMTP2GO | 3 | 0.5% |
| ESP | Mailjet (Sinch) | 3 | 0.5% |
Because MailHostBox predominates among smaller and mid-sized sites rather than the largest-volume providers, it does not typically rank in condensed testing matrices that focus on major players. However, senders targeting small-business, regional, or long-tail .com audiences may find MailHostBox placement a more accurate signal of genuine delivery friction than testing against only tier-one providers; consumer-facing or enterprise-only campaigns can often deprioritise it without materially affecting outcome metrics, since its segment represents a smaller share of typical inbox populations.
See the full MailHostBox data page (KPI cards, trend, sample domains) →
Testing MailHostBox is valuable if your audience spans small businesses or the long-tail .com segment; for consumer-focused or enterprise-only mail, volume leaders typically represent more significant delivery risk.
597 domains in the Tranco top-1M use MailHostBox as their mailbox provider as of July 13, 2026 (0.09% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
MailHostBox accounts for 0.09% 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.
MailHostBox's largest TLD is .com (48.7% of its domains); it appears across 54 TLDs in total.