Amadeus SaaS sender
According to Live Direct Marketing's daily Tranco top-1M scan (September 12, 2026), Amadeus is the SaaS sender for 174 domains — 0.03% of 629,828 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 174 domains in the Tranco top-1M use Amadeus (0.03% of SPF-publishing domains).
- Snapshot date: 2026-09-12 — recomputed every day.
- Strongest TLD: .com (48.9% of its domains).
- Most co-used service: Microsoft 365.
- Directory category: SaaS sender.
Why Amadeus appears in this category
Amadeus — travel/hospitality reservation cloud.
We classify it as a SaaS sender from include: mechanisms in the SPF record matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
Amadeus is a SaaS platform that transmits email on behalf of customer domains. Organisations using Amadeus authorise it as a mail sender by adding an SPF include to their domain's DNS records, making it part of the email authentication and delivery infrastructure.
Data from mail infrastructure analysis across the top-1M websites shows that Amadeus adoption is concentrated in the long tail of smaller organisations, predominantly in the .com namespace, and frequently paired with Microsoft 365 deployments. This distribution pattern affects authentication policy design, sender reputation scoring, and how mail infrastructure is mapped and audited.
Where Amadeus sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 5 | 2.9% |
| Top 100,000 | 49 | 28.2% |
| Top 1,000,000 | 120 | 69.0% |
| Unranked | 0 | 0.0% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 85 | 48.9% | |
| .de | 12 | 6.9% | |
| .hu | 5 | 2.9% | |
| .ro | 4 | 2.3% | |
| .fr | 4 | 2.3% | |
| .es | 3 | 1.7% | |
| .co.za | 3 | 1.7% | |
| .co.uk | 3 | 1.7% | |
| .org | 3 | 1.7% | |
| .co.il | 3 | 1.7% |
What Amadeus users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 174 domains.
| Type | Service | Domains | Share of Amadeus users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 82 | 47.1% |
| Mailbox | Google Workspace | 26 | 14.9% |
| Mailbox | Self-Hosted | 17 | 9.8% |
| Mailbox | Unknown / Other | 15 | 8.6% |
| Mailbox | Proofpoint | 11 | 6.3% |
| Mailbox | Mimecast | 9 | 5.2% |
SPF configuration and third-party sender visibility
When a domain uses Amadeus to send mail, Amadeus appears as an SPF include in that domain's DNS record. Because Amadeus adoption concentrates in the long tail of smaller and mid-market organisations rather than the largest enterprises, it is a common sight in infrastructure audits and reputation analysis at that scale. Administrators investigating SPF chains, sender reputation systems, or mail routing behaviour in small-to-mid-market segments will encounter Amadeus regularly.
See the full Amadeus data page (KPI cards, trend, sample domains) →
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Frequently asked questions
What is Amadeus in email?
Amadeus is a third-party email transmission platform used by smaller and mid-market organisations to send mail from their domains. It is authorised via SPF records and is commonly found in <code>.com</code>-space deployments, often running alongside Microsoft 365.
How many domains use Amadeus?
174 domains in the Tranco top-1M use Amadeus as their SaaS sender as of September 12, 2026 (0.03% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is Amadeus common enough to affect email deliverability testing?
Amadeus accounts for 0.03% of SPF-publishing domains 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.
Which countries or TLDs use Amadeus most?
Amadeus's largest TLD is .com (48.9% of its domains); it appears across 49 TLDs in total.