Skymail (BR) email service provider (ESP)
According to Live Direct Marketing's daily Tranco top-1M scan (September 17, 2026), Skymail (BR) is the email service provider (ESP) for 164 domains — 0.03% of 635,547 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 164 domains in the Tranco top-1M use Skymail (BR) (0.03% of SPF-publishing domains).
- Snapshot date: 2026-09-17 — recomputed every day.
- Strongest TLD: .com.br (82.3% of its domains).
- Region skew: Brazil.
- Most co-used service: Skymail (BR).
- Directory category: mailbox provider.
Why Skymail (BR) appears in this category
Brazilian Skymail (SkyOne) outbound.
We classify it as a mailbox provider 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.
Skymail (BR) is an email service provider (ESP) primarily used by Brazilian website operators. It is detected across email infrastructure via SPF include mechanisms, indicating its role in the outbound mail configuration for its customer base.
The footprint pattern shows Skymail (BR) concentrated in the .com.br domain space and favoured by smaller to mid-sized sites rather than mega-scale properties. For deliverability professionals and email senders, this means understanding Skymail (BR)'s SPF configuration and authentication practices is relevant when evaluating mail from Brazilian sources or when Brazilian clients use it as their mail infrastructure.
Where Skymail (BR) 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 | 7 | 4.3% |
| Top 1,000,000 | 154 | 93.9% |
| Unranked | 3 | 1.8% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com.br | 135 | 82.3% | |
| .br | 16 | 9.8% | |
| .com | 8 | 4.9% | |
| .center | 1 | 0.6% | |
| .cl | 1 | 0.6% | |
| .net | 1 | 0.6% | |
| .pt | 1 | 0.6% | |
| .me | 1 | 0.6% |
What Skymail (BR) users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 164 domains.
| Type | Service | Domains | Share of Skymail (BR) users |
|---|---|---|---|
| Mailbox | Skymail (BR) | 110 | 67.1% |
| Mailbox | Microsoft 365 | 25 | 15.2% |
| Mailbox | Google Workspace | 16 | 9.8% |
| Mailbox | Unknown / Other | 8 | 4.9% |
| Mailbox | Self-Hosted | 2 | 1.2% |
| Mailbox | Generic / unmatched (mx*.*) | 1 | 0.6% |
| ESP | SendGrid (Twilio) | 30 | 18.3% |
| ESP | RD Station (BR) | 29 | 17.7% |
| ESP | Amazon SES | 24 | 14.6% |
| ESP | Zendesk | 7 | 4.3% |
SPF detection and authentication in Skymail (BR) configurations
Skymail (BR) appears in email infrastructure primarily through SPF include mechanisms, meaning senders that route mail through Skymail (BR) advertise it in their domain's SPF record. This allows mail receivers to verify that inbound messages claiming to come from a Skymail (BR) customer are authorised to send from that customer's domain, a critical step in preventing spoofing and improving deliverability.
See the full Skymail (BR) data page (KPI cards, trend, sample domains) →
Run a free inbox-placement test across Gmail, Outlook, Yahoo and more — see exactly where your mail lands and why.
Frequently asked questions
Do I need to test my email deliverability against Skymail (BR)?
If you work with Brazilian senders or recipients, Skymail (BR) is worth understanding for SPF and authentication purposes. However, as a regional player concentrated in smaller Brazilian sites, it is not typically a primary deliverability testing target for international senders.
How many domains use Skymail (BR)?
164 domains in the Tranco top-1M use Skymail (BR) as their email service provider (ESP) as of September 17, 2026 (0.03% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is Skymail (BR) common enough to affect email deliverability testing?
Skymail (BR) 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 Skymail (BR) most?
Skymail (BR)'s largest TLD is .com.br (82.3% of its domains); it appears across 8 TLDs in total.