mailbox
According to Live Direct Marketing's daily Tranco top-1M scan (July 26, 2026), Proofpoint Essentials is the mailbox provider for 2,956 domains — 0.44% of 667,887 domains with MX records. Over the last 30 days its share grew by 0.01 pp. Its strongest TLD is .com (67.7% of its domains). Detection: primary MX record (lowest preference).
Last updated from the 2026-07-26 DNS snapshot.
Proofpoint SMB tier (ppe-hosted.com).
Directory category: Gateway. The classification comes from primary MX record (lowest preference). It describes observed DNS infrastructure, not a commercial relationship and not the placement of any individual message.
Across 86 distinct TLDs its top three are .com (67.7%), .org (15.5%), .net (2.8%) — together 86.0% of the 2,956 domains, which makes the footprint narrow — three TLDs cover most of it, which is typical of a regional or single-market operator. The service most often observed on the same domains is Proofpoint Essentials (ESP, 823 domains, 27.8% of them), followed by SendGrid (Twilio) (9.9%). Its share of domains with MX records moved +0.01 pp in 30 days — inside the daily noise of list rotation. Directly comparable by the same detection rule: Self-Hosted, Google Workspace, Microsoft 365. Ranking between them reflects what is published in DNS, not delivery quality or volume sent. All figures come from a single daily DNS snapshot (2026-07-26); a domain appears here when its published records match the primary MX record (lowest preference) rule, which is an infrastructure fact, not a commercial relationship.
What else the same 2,956 domains use — cross-tabulated from the same daily snapshot (2026-07-26).
| Type | Service | Domains | Share of Proofpoint Essentials users |
|---|---|---|---|
| ESP | Proofpoint Essentials | 823 | 27.8% |
| ESP | SendGrid (Twilio) | 293 | 9.9% |
| ESP | HubSpot | 246 | 8.3% |
| ESP | Mailgun | 222 | 7.5% |
| ESP | Mailchimp | 218 | 7.4% |
| ESP | Amazon SES | 206 | 7.0% |
| ESP | Mandrill | 179 | 6.1% |
| ESP | Salesforce | 179 | 6.1% |
| ESP | Zendesk | 168 | 5.7% |
| ESP | Constant Contact | 61 | 2.1% |
2,956 domains in the Tranco top-1M use Proofpoint Essentials as their mailbox provider as of July 26, 2026, according to Live Direct Marketing's daily DNS scan.
Proofpoint Essentials holds 0.44% of domains with MX records in the Tranco top-1M (snapshot of 2026-07-26). The number is recomputed every day.
Proofpoint Essentials's share grew by 0.01 percentage points over the last 30 days (as of July 26, 2026).
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 2026-07-26).
Self-Hosted (22.75%) · Google Workspace (21.84%) · Microsoft 365 (16.92%) · Unknown / Other (6.80%) · Generic / unmatched (mx*.*) (2.54%) · Proofpoint (1.92%) · Generic / unmatched (mail.*) (1.77%) · Yandex 360 (1.68%) · Cloudflare Email Routing (1.63%) · Mimecast (1.53%)
Showing 100 of 2,956 domains.