Magenta Business (T-Mobile AT) mailbox provider
According to Live Direct Marketing's daily Tranco top-1M scan (September 18, 2026), Magenta Business (T-Mobile AT) is the mailbox provider for 40 domains — 0.01% of 675,783 domains with MX records. Detection method: primary MX record (lowest preference).
Key facts
- 40 domains in the Tranco top-1M use Magenta Business (T-Mobile AT) (0.01% of domains with MX records).
- Snapshot date: 2026-09-18 — recomputed every day.
- Strongest TLD: .at (65.0% of its domains).
- Region skew: Austria.
- Most co-used service: Amazon SES.
- Directory category: mailbox provider.
Why Magenta Business (T-Mobile AT) appears in this category
Deutsche Telekom Austrian B2B branding.
We classify it as a mailbox provider from primary MX record (lowest preference) matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
Magenta Business is the email hosting service operated by T-Mobile Austria, providing both inbound and outbound mail infrastructure to organisations across Austria.
Magenta Business appears across Austria's .at domains in the Tranco top-1 million list, concentrated in the mid-market and smaller-organisation segment rather than enterprise operations. Its presence frequently overlaps with Brevo (formerly Sendinblue). For senders targeting Austrian recipients, Magenta Business is a material provider to account for in deliverability testing; for receivers at Magenta-hosted domains, the provider's specific filtering and authentication standards directly affect inbox placement.
Where Magenta Business (T-Mobile AT) sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 0 | 0.0% |
| Top 100,000 | 1 | 2.5% |
| Top 1,000,000 | 39 | 97.5% |
| Unranked | 0 | 0.0% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .at | 26 | 65.0% | |
| .com | 8 | 20.0% | |
| .net | 2 | 5.0% | |
| .de | 2 | 5.0% | |
| .org | 1 | 2.5% | |
| .business | 1 | 2.5% |
What Magenta Business (T-Mobile AT) users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 40 domains.
| Type | Service | Domains | Share of Magenta Business (T-Mobile AT) users |
|---|---|---|---|
| ESP | Amazon SES | 1 | 2.5% |
| ESP | Zoho ZeptoMail | 1 | 2.5% |
Regional Austrian focus and mid-market concentration
Magenta Business is geographically concentrated in Austria's .at domain space and predominantly deployed across mid-market and smaller organisations rather than large enterprises. This regional and size-based skew means mail senders targeting Austrian recipients should recognise Magenta Business as a provider-specific routing target with distinct infrastructure characteristics. The mid-market prevalence may also indicate varying maturity in email authentication standards across the recipient base, making SPF, DKIM, and DMARC compliance particularly important for reliable delivery.
See the full Magenta Business (T-Mobile AT) data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Why is Magenta Business significant for email deliverability?
Magenta Business hosts a concentrated segment of Austrian .at domain inboxes, particularly amongst mid-market and smaller organisations. Senders targeting Austrian recipients and receivers at Magenta-hosted domains should account for its specific filtering, authentication, and abuse standards.
How many domains use Magenta Business (T-Mobile AT)?
40 domains in the Tranco top-1M use Magenta Business (T-Mobile AT) as their mailbox provider as of September 18, 2026 (0.01% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Is Magenta Business (T-Mobile AT) common enough to affect email deliverability testing?
Magenta Business (T-Mobile AT) accounts for 0.01% 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.
Which countries or TLDs use Magenta Business (T-Mobile AT) most?
Magenta Business (T-Mobile AT)'s largest TLD is .at (65.0% of its domains); it appears across 6 TLDs in total.