iberlayer (ES) mailbox provider
According to Live Direct Marketing's daily Tranco top-1M scan (September 24, 2026), iberlayer (ES) is the mailbox provider for 102 domains — 0.02% of 675,489 domains with MX records. Detection method: primary MX record (lowest preference).
Key facts
- 102 domains in the Tranco top-1M use iberlayer (ES) (0.02% of domains with MX records).
- Snapshot date: 2026-09-24 — recomputed every day.
- Strongest TLD: .com (48.0% of its domains).
- Region skew: Global / US-skewed.
- Most co-used service: Mailjet (Sinch).
- Directory category: email security gateway.
Why iberlayer (ES) appears in this category
Spanish anti-spam gateway operator.
We classify it as a email security gateway 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.
iberlayer is a mailbox provider operating in the long tail of internet domains, primarily hosting email infrastructure for smaller and mid-market websites concentrated in the .com space. Its footprint reflects a global and US-skewed customer base, positioned distinctly away from the largest enterprise platforms.
For email senders and infrastructure engineers, iberlayer's distribution pattern is noteworthy because it clusters with HubSpot installations, indicating a specific cohort of businesses using integrated CRM-to-email workflows. Understanding where such providers sit in the delivery landscape is essential for realistic testing strategies and for diagnosing mail flow issues in real-world scenarios.
Where iberlayer (ES) sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 1 | 1.0% |
| Top 10,000 | 4 | 3.9% |
| Top 100,000 | 24 | 23.5% |
| Top 1,000,000 | 73 | 71.6% |
| Unranked | 0 | 0.0% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 49 | 48.0% | |
| .es | 29 | 28.4% | |
| .cl | 11 | 10.8% | |
| .net | 3 | 2.9% | |
| .com.co | 2 | 2.0% | |
| .edu | 1 | 1.0% | |
| .co | 1 | 1.0% | |
| .gal | 1 | 1.0% | |
| .school | 1 | 1.0% | |
| .mx | 1 | 1.0% |
What iberlayer (ES) users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 102 domains.
| Type | Service | Domains | Share of iberlayer (ES) users |
|---|---|---|---|
| ESP | Mailjet (Sinch) | 6 | 5.9% |
| ESP | Amazon SES | 6 | 5.9% |
| ESP | Mailgun | 6 | 5.9% |
| ESP | HubSpot | 5 | 4.9% |
| ESP | SendGrid (Twilio) | 4 | 3.9% |
| ESP | Mailchimp | 4 | 3.9% |
| ESP | Zendesk | 4 | 3.9% |
| ESP | Brevo (ex-Sendinblue) | 4 | 3.9% |
| ESP | Mandrill | 3 | 2.9% |
| ESP | IPzMarketing | 3 | 2.9% |
Long-tail testing strategy: why iberlayer's SMB and HubSpot clustering matters
iberlayer's presence is concentrated among smaller and mid-market businesses, particularly those using HubSpot. If your sending strategy targets or intersects with this segment, direct testing against iberlayer is more informative than extrapolating from enterprise-grade providers alone. This long-tail positioning also means iberlayer's infrastructure, filtering logic, and handling of email traffic patterns may differ significantly from larger carriers, making it a necessary inclusion in representative test coverage.
See the full iberlayer (ES) data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Do I need to test email deliverability against iberlayer?
Yes, if you send to SMBs or HubSpot-using businesses; iberlayer represents a meaningful portion of real-world recipient infrastructure in that segment. For enterprise-only campaigns, it may be lower priority.
How many domains use iberlayer (ES)?
102 domains in the Tranco top-1M use iberlayer (ES) as their mailbox provider as of September 24, 2026 (0.02% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Is iberlayer (ES) common enough to affect email deliverability testing?
iberlayer (ES) 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.
Which countries or TLDs use iberlayer (ES) most?
iberlayer (ES)'s largest TLD is .com (48.0% of its domains); it appears across 13 TLDs in total.