According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Contactlab is the email service provider (ESP) for 122 domains — 0.02% of 617,702 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Contactlab is an email service provider that manages marketing campaigns and customer communications for organisations across Europe, with a particular presence among Italian businesses and European mid-market brands. The platform acts as a sending infrastructure provider, enabling clients to maintain dedicated email channels for marketing and transactional mail.
Contactlab's visibility in SPF records reveals a concentrated footprint among smaller and regional brands rather than global enterprise leaders. Most notably, the service appears predominantly in Italian domains and frequently coexists with Microsoft 365 in the same organisation's SPF configuration. For mail administrators, this pattern signals hybrid sending infrastructure: organisations running Office 365 for conventional business mail whilst routing marketing, campaigns, or segmented communications through a separate platform such as Contactlab.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 1 | 0.8% |
| Top 10,000 | 3 | 2.5% |
| Top 100,000 | 30 | 24.6% |
| Top 1,000,000 | 83 | 68.0% |
| Unranked | 5 | 4.1% |
| TLD | Domains | Share | |
|---|---|---|---|
| .it | 65 | 53.3% | |
| .com | 44 | 36.1% | |
| .es | 3 | 2.5% | |
| .fr | 2 | 1.6% | |
| .pt | 2 | 1.6% | |
| .de | 1 | 0.8% | |
| .com.ar | 1 | 0.8% | |
| .co.uk | 1 | 0.8% | |
| .co.za | 1 | 0.8% | |
| .nl | 1 | 0.8% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 122 domains.
| Type | Service | Domains | Share of Contactlab users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 44 | 36.1% |
| Mailbox | Proofpoint | 19 | 15.6% |
| Mailbox | Unknown / Other | 17 | 13.9% |
| Mailbox | Google Workspace | 12 | 9.8% |
| Mailbox | Self-Hosted | 9 | 7.4% |
| Mailbox | Cisco IronPort | 8 | 6.6% |
| ESP | Zendesk | 24 | 19.7% |
| ESP | Proofpoint | 17 | 13.9% |
| ESP | MailUp | 17 | 13.9% |
| ESP | Salesforce | 13 | 10.7% |
Contactlab's presence in SPF records correlates with a specific infrastructure pattern common in European mid-market organisations: the combination of a primary mail provider (typically Microsoft 365) with a secondary campaign or marketing platform. This dual-provider setup affects sender reputation management, as traffic from Contactlab's sending infrastructure operates independently of an organisation's primary email service. Mail administrators must monitor both the primary provider's IP reputation and Contactlab's dedicated sending IPs to understand email performance holistically, particularly when campaigns and transactional mail route through different platforms.
See the full Contactlab data page (KPI cards, trend, sample domains) →
Contactlab's presence signals that the organisation uses a dedicated marketing or campaign email platform, typically in addition to a primary email service such as Microsoft 365. This arrangement is common in European businesses that separate campaign sending from transactional or business mail.
122 domains in the Tranco top-1M use Contactlab as their email service provider (ESP) as of July 13, 2026 (0.02% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Contactlab accounts for 0.02% 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.
Contactlab's largest TLD is .it (53.3% of its domains); it appears across 11 TLDs in total.