mailbox
According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Seznam.cz (Czech) is the mailbox provider for 293 domains — 0.04% of 658,711 domains with MX records. Its strongest TLD is .cz (70.0% of its domains). Detection: primary MX record (lowest preference).
What else the same 293 domains use — cross-tabulated from the same daily snapshot (2026-07-13).
| Type | Service | Domains | Share of Seznam.cz (Czech) users |
|---|---|---|---|
| ESP | Mailchimp | 16 | 5.5% |
| ESP | Heureka Mailing (CZ) | 16 | 5.5% |
| ESP | SmartEmailing | 15 | 5.1% |
| ESP | Mailgun | 12 | 4.1% |
| ESP | SparkPost | 11 | 3.8% |
| ESP | MailerSend | 5 | 1.7% |
| ESP | Mailkit | 4 | 1.4% |
| ESP | Mandrill | 2 | 0.7% |
| ESP | Brevo (ex-Sendinblue) | 2 | 0.7% |
| ESP | Amazon SES | 2 | 0.7% |
293 domains in the Tranco top-1M use Seznam.cz (Czech) as their mailbox provider as of July 13, 2026, according to Live Direct Marketing's daily DNS scan.
Seznam.cz (Czech) holds 0.04% of domains with MX records in the Tranco top-1M (snapshot of 2026-07-13). 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 2026-07-13).
Self-Hosted (22.44%) · Google Workspace (21.78%) · Microsoft 365 (16.74%) · Unknown / Other (7.54%) · Generic / unmatched (mx*.*) (2.57%) · Proofpoint (1.90%) · Generic / unmatched (mail.*) (1.75%) · Yandex 360 (1.64%) · Cloudflare Email Routing (1.60%) · Mimecast (1.52%)
Showing 100 of 293 domains.