esp
According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Sophos Reflexion is the email service provider (ESP) for 55 domains — 0.01% of 617,702 SPF-publishing domains. Its strongest TLD is .com (72.7% of its domains). Detection: include: mechanisms in the SPF record.
What else the same 55 domains use — cross-tabulated from the same daily snapshot (2026-07-13).
| Type | Service | Domains | Share of Sophos Reflexion users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 32 | 58.2% |
| Mailbox | Forward Email | 4 | 7.3% |
| Mailbox | Proofpoint | 4 | 7.3% |
| Mailbox | Unknown / Other | 3 | 5.5% |
| Mailbox | Sophos Email | 3 | 5.5% |
| Mailbox | Google Workspace | 2 | 3.6% |
| ESP | Mailchimp | 9 | 16.4% |
| ESP | Mandrill | 6 | 10.9% |
| ESP | HubSpot | 6 | 10.9% |
| ESP | SendGrid (Twilio) | 6 | 10.9% |
55 domains in the Tranco top-1M use Sophos Reflexion as their email service provider (ESP) as of July 13, 2026, according to Live Direct Marketing's daily DNS scan.
Sophos Reflexion holds 0.01% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-07-13). The number is recomputed every day.
The largest email service provider (ESP)s in the same category by Tranco top-1M share are: Amazon SES, SendGrid (Twilio), Mailgun, Zendesk, Mailchimp (as of 2026-07-13).
Amazon SES (6.21%) · SendGrid (Twilio) (4.76%) · Mailgun (4.11%) · Zendesk (3.86%) · Mailchimp (3.69%) · Mandrill (3.36%) · HubSpot (3.18%) · Salesforce (2.62%) · Mailjet (Sinch) (2.13%) · Cloudflare Email Routing (1.80%)
Showing 55 of 55 domains.