esp
According to Live Direct Marketing's daily Tranco top-1M scan (July 26, 2026), Amazon SES is the email service provider (ESP) for 38,921 domains — 6.17% of 630,738 SPF-publishing domains. Its share has been stable over the last 30 days. Its strongest TLD is .com (49.6% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-07-26 DNS snapshot.
AWS Simple Email Service — high-volume cloud email backbone for AWS workloads.
Directory category: Esp. The classification comes from include: mechanisms in the SPF record. It describes observed DNS infrastructure, not a commercial relationship and not the placement of any individual message.
Across 458 distinct TLDs its top three are .com (49.6%), .org (4.5%), .com.br (3.1%) — together 57.2% of the 38,921 domains, which makes the footprint moderately concentrated, with a recognisable home market. The service most often observed on the same domains is Google Workspace (Mailbox, 14,591 domains, 37.5% of them), followed by Microsoft 365 (25.0%). Its share of SPF-publishing domains has not moved measurably in 30 days. Year-over-year the share is +0.42 pp, so the 30-day move is against the longer trend. Directly comparable by the same detection rule: SendGrid (Twilio), Mailgun, Zendesk. 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 include: mechanisms in the SPF record rule, which is an infrastructure fact, not a commercial relationship.
What else the same 38,921 domains use — cross-tabulated from the same daily snapshot (2026-07-26).
| Type | Service | Domains | Share of Amazon SES users |
|---|---|---|---|
| Mailbox | Google Workspace | 14,591 | 37.5% |
| Mailbox | Microsoft 365 | 9,729 | 25.0% |
| Mailbox | Self-Hosted | 2,687 | 6.9% |
| Mailbox | Amazon WorkMail | 2,228 | 5.7% |
| Mailbox | Unknown / Other | 1,579 | 4.1% |
| Mailbox | Mimecast | 1,023 | 2.6% |
| ESP | Zendesk | 4,457 | 11.5% |
| ESP | SendGrid (Twilio) | 4,179 | 10.7% |
| ESP | HubSpot | 3,574 | 9.2% |
| ESP | Mailchimp | 3,303 | 8.5% |
38,921 domains in the Tranco top-1M use Amazon SES as their email service provider (ESP) as of July 26, 2026, according to Live Direct Marketing's daily DNS scan.
Amazon SES holds 6.17% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-07-26). The number is recomputed every day.
Amazon SES's share has been stable over the last 30 days (±0.01 pp).
The largest email service provider (ESP)s in the same category by Tranco top-1M share are: SendGrid (Twilio), Mailgun, Zendesk, Mailchimp, Mandrill (as of 2026-07-26).
SendGrid (Twilio) (4.76%) · Mailgun (4.11%) · Zendesk (3.83%) · Mailchimp (3.70%) · Mandrill (3.36%) · HubSpot (3.19%) · Salesforce (2.62%) · Mailjet (Sinch) (2.13%) · Cloudflare Email Routing (1.82%) · Brevo (ex-Sendinblue) (1.45%)
Showing 100 of 38,921 domains.