Amazon WorkMail email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 5, 2026), Amazon WorkMail is the mailbox provider for 4,530 domains — 0.68% of 666,937 domains with MX records. Over the last 30 days its share declined by 0.02 pp. Its strongest TLD is .com (46.4% of its domains). Detection: primary MX record (lowest preference).
Last updated from the 2026-09-05 DNS snapshot.
What Amazon WorkMail represents in this dataset
Amazon corporate mail (Exchange-compatible).
Directory category: Mailbox. 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 2026-09-05 snapshot shows about Amazon WorkMail
Across 289 distinct TLDs its top three are .com (46.4%), .net (6.6%), .jp (5.7%) — together 58.8% of the 4,530 domains, which makes the footprint moderately concentrated, with a recognisable home market. The service most often observed on the same domains is Amazon SES (ESP, 2,112 domains, 46.6% of them), followed by Zendesk (2.9%). Its share of domains with MX records moved -0.02 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 (2026-09-05); 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 Amazon WorkMail
What else the same 4,530 domains use — cross-tabulated from the same daily snapshot (2026-09-05).
| Type | Service | Domains | Share of Amazon WorkMail users |
|---|---|---|---|
| ESP | Amazon SES | 2,112 | 46.6% |
| ESP | Zendesk | 130 | 2.9% |
| ESP | SendGrid (Twilio) | 126 | 2.8% |
| ESP | Mailgun | 86 | 1.9% |
| ESP | Mandrill | 67 | 1.5% |
| ESP | Mailchimp | 65 | 1.4% |
| ESP | Salesforce | 60 | 1.3% |
| ESP | HubSpot | 43 | 0.9% |
| ESP | Mailjet (Sinch) | 37 | 0.8% |
| ESP | Brevo (ex-Sendinblue) | 34 | 0.8% |
TLD distribution (top 30 of 289)
Frequently asked questions
How many domains use Amazon WorkMail?
4,530 domains in the Tranco top-1M use Amazon WorkMail as their mailbox provider as of September 5, 2026, according to Live Direct Marketing's daily DNS scan.
What is Amazon WorkMail's market share?
Amazon WorkMail holds 0.68% of domains with MX records in the Tranco top-1M (snapshot of 2026-09-05). The number is recomputed every day.
Is Amazon WorkMail growing or declining?
Amazon WorkMail's share declined by 0.02 percentage points over the last 30 days (as of September 5, 2026).
What are the biggest alternatives to Amazon WorkMail?
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 2026-09-05).
Largest mailbox providers in this category
Self-Hosted (22.62%) · Google Workspace (21.64%) · Microsoft 365 (16.80%) · Unknown / Other (6.84%) · Generic / unmatched (mx*.*) (2.58%) · Proofpoint (1.89%) · Generic / unmatched (mail.*) (1.78%) · Cloudflare Email Routing (1.72%) · Yandex 360 (1.60%) · Mimecast (1.46%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 4,530 domains.