mailbox
According to Live Direct Marketing's daily Tranco top-1M scan (July 12, 2026), TopDNS is the mailbox provider for 30 domains — 0.00% of 658,108 domains with MX records. Its strongest TLD is .com (76.7% of its domains). Detection: primary MX record (lowest preference).
What else the same 30 domains use — cross-tabulated from the same daily snapshot (2026-07-12).
| Type | Service | Domains | Share of TopDNS users |
|---|---|---|---|
| ESP | Zendesk | 1 | 3.3% |
30 domains in the Tranco top-1M use TopDNS as their mailbox provider as of July 12, 2026, according to Live Direct Marketing's daily DNS scan.
TopDNS holds 0.00% of domains with MX records in the Tranco top-1M (snapshot of 2026-07-12). The number is recomputed every day.
The largest mailbox providers in the same category by Tranco top-1M share are: Self-Hosted, Google Workspace, Microsoft 365, Unknown / Other, Generic / unmatched (mx*.*) (as of 2026-07-12).
Self-Hosted (22.43%) · Google Workspace (21.78%) · Microsoft 365 (16.73%) · Unknown / Other (7.76%) · Generic / unmatched (mx*.*) (2.77%) · Proofpoint (1.90%) · Generic / unmatched (mail.*) (1.75%) · Yandex 360 (1.64%) · Cloudflare Email Routing (1.59%) · Mimecast (1.52%)
Showing 30 of 30 domains.