According to Live Direct Marketing's daily Tranco top-1M scan (July 12, 2026), Acumbamail (ES) is the email service provider (ESP) for 250 domains — 0.04% of 617,244 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Acumbamail is a Spanish email service provider focused on marketing campaigns and transactional email, detected across the web primarily through its SPF include mechanisms. It operates as a long-tail email infrastructure vendor, providing sending capacity and email management to businesses that publish it alongside their primary email authentication records.
Its footprint pattern — concentrated in smaller sites rather than major brands, predominantly .com domains, and most often paired with Google Workspace — signals a customer base of small and medium-sized businesses combining Google's email hosting with Acumbamail's sending capabilities. For deliverability engineers and senders targeting or monitoring this segment, Acumbamail's presence in SPF records indicates multi-vendor email infrastructure worth tracking during authentication audits and reputation assessment.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 3 | 1.2% |
| Top 100,000 | 34 | 13.6% |
| Top 1,000,000 | 186 | 74.4% |
| Unranked | 27 | 10.8% |
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 130 | 52.0% | |
| .es | 64 | 25.6% | |
| .org | 9 | 3.6% | |
| .net | 5 | 2.0% | |
| .de | 5 | 2.0% | |
| .it | 4 | 1.6% | |
| .cat | 4 | 1.6% | |
| .io | 4 | 1.6% | |
| .co | 3 | 1.2% | |
| .pt | 2 | 0.8% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 250 domains.
| Type | Service | Domains | Share of Acumbamail (ES) users |
|---|---|---|---|
| Mailbox | Google Workspace | 72 | 28.8% |
| Mailbox | Microsoft 365 | 63 | 25.2% |
| Mailbox | Self-Hosted | 52 | 20.8% |
| Mailbox | Unknown / Other | 18 | 7.2% |
| Mailbox | Generic / unmatched (mx*.*) | 9 | 3.6% |
| Mailbox | Amazon WorkMail | 8 | 3.2% |
| ESP | Amazon SES | 38 | 15.2% |
| ESP | Mailjet (Sinch) | 28 | 11.2% |
| ESP | Mandrill | 17 | 6.8% |
| ESP | Zendesk | 15 | 6.0% |
Acumbamail frequently appears in SPF configurations alongside Google Workspace, a pattern typical of organisations using Google for hosted email and Acumbamail for marketing or transactional sends. This combination requires careful SPF management to avoid authentication conflicts; organisations publishing both must ensure include statements are ordered correctly and that downstream reputation (warm-up, bounce handling, complaint rates) is managed separately for each vendor's sending volume. For delivery professionals auditing such infrastructure, this pairing merits explicit testing for DMARC alignment and SPF flattening risk.
See the full Acumbamail (ES) data page (KPI cards, trend, sample domains) →
Acumbamail is used by smaller businesses for transactional and marketing email, so testing against its infrastructure is relevant if you target that segment; however, it is not a major inbox provider where you need to build separate sender reputation.
250 domains in the Tranco top-1M use Acumbamail (ES) as their email service provider (ESP) as of July 12, 2026 (0.04% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Acumbamail (ES) accounts for 0.04% 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.
Acumbamail (ES)'s largest TLD is .com (52.0% of its domains); it appears across 27 TLDs in total.