Sophos Email email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), Sophos Email is the mailbox provider for 884 domains — 0.13% of 675,489 domains with MX records. Its strongest TLD is .com (37.0% of its domains). Detection: primary MX record (lowest preference).
Last updated from the 2026-09-24 DNS snapshot.
What Sophos Email represents in this dataset
Sophos Email (Reflexion-based) anti-spam gateway.
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.
What the 2026-09-24 snapshot shows about Sophos Email
Across 74 distinct TLDs its top three are .com (37.0%), .de (16.0%), .org (7.0%) — together 60.0% of the 884 domains, which makes the footprint moderately concentrated, with a recognisable home market. The service most often observed on the same domains is Sophos Email (EU) (ESP, 317 domains, 35.9% of them), followed by Sophos Email (22.7%). 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 (2026-09-24); 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.
Commonly used together with Sophos Email
What else the same 884 domains use — cross-tabulated from the same daily snapshot (2026-09-24).
| Type | Service | Domains | Share of Sophos Email users |
|---|---|---|---|
| ESP | Sophos Email (EU) | 317 | 35.9% |
| ESP | Sophos Email | 201 | 22.7% |
| ESP | Sophos Email (US) | 102 | 11.5% |
| ESP | Amazon SES | 64 | 7.2% |
| ESP | SendGrid (Twilio) | 63 | 7.1% |
| ESP | Salesforce | 57 | 6.4% |
| ESP | HubSpot | 49 | 5.5% |
| ESP | Mailgun | 48 | 5.4% |
| ESP | Zendesk | 44 | 5.0% |
| ESP | Mailchimp | 43 | 4.9% |
TLD distribution (top 30 of 74)
Frequently asked questions
How many domains use Sophos Email?
884 domains in the Tranco top-1M use Sophos Email as their mailbox provider as of September 24, 2026, according to Live Direct Marketing's daily DNS scan.
What is Sophos Email's market share?
Sophos Email holds 0.13% of domains with MX records in the Tranco top-1M (snapshot of 2026-09-24). The number is recomputed every day.
What are the biggest alternatives to Sophos Email?
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 2026-09-24).
Largest mailbox providers in this category
Self-Hosted (22.56%) · Google Workspace (21.58%) · Microsoft 365 (17.03%) · Unknown / Other (6.68%) · Generic / unmatched (mx*.*) (2.53%) · Generic / unmatched (mail.*) (1.93%) · Proofpoint (1.86%) · Cloudflare Email Routing (1.76%) · Yandex 360 (1.67%) · Mimecast (1.47%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 884 domains.