According to Live Direct Marketing's daily Tranco top-1M scan (July 12, 2026), Amazon SES (inbound) is the mailbox provider for 108 domains — 0.02% of 658,108 domains with MX records. Detection method: primary MX record (lowest preference).
Amazon SES (Simple Email Service) inbound is Amazon Web Services' mail server platform, which allows organisations to configure their domains' MX records to point to Amazon's infrastructure for inbound email reception and storage. It provides mail filtering, delivery to downstream systems, and the core mail-handling logic that recipients depend on to receive their messages.
SES inbound appears predominantly amongst smaller and mid-market websites rather than the world's largest brands, distributed internationally across numerous domain extensions with a marked US presence. For email senders, this footprint means that deliverability testing must account for SES inbound as a real recipient infrastructure—particularly when targeting smaller businesses and international audiences—even though it remains less visible than consumer-facing mailbox providers.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 2 | 1.9% |
| Top 100,000 | 10 | 9.3% |
| Top 1,000,000 | 86 | 79.6% |
| Unranked | 10 | 9.3% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 46 | 42.6% | |
| .jp | 7 | 6.5% | |
| .net | 7 | 6.5% | |
| .com.br | 6 | 5.6% | |
| .de | 3 | 2.8% | |
| .ai | 3 | 2.8% | |
| .org | 3 | 2.8% | |
| .app | 3 | 2.8% | |
| .io | 3 | 2.8% | |
| .gr | 2 | 1.9% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 108 domains.
| Type | Service | Domains | Share of Amazon SES (inbound) users |
|---|---|---|---|
| ESP | Amazon SES | 74 | 68.5% |
| ESP | Mailgun | 3 | 2.8% |
| ESP | SendGrid (Twilio) | 2 | 1.9% |
| ESP | HubSpot | 2 | 1.9% |
| ESP | Zendesk | 2 | 1.9% |
| ESP | Namecheap Forwarding | 1 | 0.9% |
| ESP | Tricorn | 1 | 0.9% |
| ESP | KMITD (TH) | 1 | 0.9% |
| ESP | RD Station (BR) | 1 | 0.9% |
| ESP | Zoho ZeptoMail | 1 | 0.9% |
Amazon SES inbound enforces standard SMTP authentication checks, bounce handling, and content filtering on incoming mail. Senders targeting recipients whose inbound mail server is SES must meet baseline criteria including valid reverse DNS configuration, properly configured SPF and DKIM records, and compliance with SES's rate limits and sender reputation signals. Organisations that overlook these requirements during testing may encounter unexpected delivery failures or filtering when mail reaches an SES inbound mailbox in production, making familiarity with these expectations essential for reliable cross-provider deliverability.
See the full Amazon SES (inbound) data page (KPI cards, trend, sample domains) →
Yes—SES inbound is used by smaller to mid-sized websites to receive their own mail, and testing against it helps identify whether your sending infrastructure meets its SMTP and authentication requirements. Including SES inbound in deliverability testing ensures your mail will not be rejected or filtered when it reaches recipients using Amazon's mail server.
108 domains in the Tranco top-1M use Amazon SES (inbound) as their mailbox provider as of July 12, 2026 (0.02% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Amazon SES (inbound) accounts for 0.02% of domains with MX records in the top 1M. Whether you should seed a test mailbox there depends on how much of your audience it represents — the co-usage table above shows the services it appears alongside most.
Amazon SES (inbound)'s largest TLD is .com (42.6% of its domains); it appears across 32 TLDs in total.