According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), LibraESVA is the email service provider (ESP) for 160 domains — 0.03% of 617,702 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
LibraESVA is an email service provider that handles message transmission and delivery for customer organisations. It operates typically as a backend sending service accessed via API or SMTP integration.
The infrastructure shows a specific pattern: adoption concentrated in smaller and mid-market organisations rather than the largest global brands, with international presence spread across multiple countries and top-level domains, predominantly .com. A characteristic deployment pattern pairs LibraESVA with EmailSecurity.app, a gateway service, suggesting these sites use a layered sending stack in which security and compliance processing occurs upstream before final delivery.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 0 | 0.0% |
| Top 100,000 | 11 | 6.9% |
| Top 1,000,000 | 121 | 75.6% |
| Unranked | 28 | 17.5% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 62 | 38.8% | |
| .org | 21 | 13.1% | |
| .co.uk | 17 | 10.6% | |
| .gr | 6 | 3.8% | |
| .ie | 6 | 3.8% | |
| .it | 5 | 3.1% | |
| .ro | 4 | 2.5% | |
| .hr | 3 | 1.9% | |
| .com.au | 3 | 1.9% | |
| .org.uk | 3 | 1.9% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 160 domains.
| Type | Service | Domains | Share of LibraESVA users |
|---|---|---|---|
| Mailbox | EmailSecurity.app gateway | 153 | 95.6% |
| Mailbox | Microsoft 365 | 5 | 3.1% |
| Mailbox | Unknown / Other | 1 | 0.6% |
| Mailbox | Google Workspace | 1 | 0.6% |
| ESP | SendGrid (Twilio) | 15 | 9.4% |
| ESP | Mailchimp | 14 | 8.8% |
| ESP | Amazon SES | 14 | 8.8% |
| ESP | Mandrill | 13 | 8.1% |
Organisations routing mail through both EmailSecurity.app and LibraESVA must configure authentication (SPF, DKIM, DMARC) to account for both intermediaries; mail passing through both layers generates multiple signatures and authentication touchpoints, each of which must align with published policies. Receiving systems validating such mail require clarity on the complete chain to avoid false authentication failures or policy rejections at intermediate hops.
See the full LibraESVA data page (KPI cards, trend, sample domains) →
Yes, if you use LibraESVA in your sending stack. If it is paired with a gateway service, test the combined configuration to catch issues at multi-layer boundaries.
160 domains in the Tranco top-1M use LibraESVA as their email service provider (ESP) as of July 13, 2026 (0.03% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
LibraESVA 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.
LibraESVA's largest TLD is .com (38.8% of its domains); it appears across 36 TLDs in total.