Contactlab email provider statistics and deliverability context
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According to Live Direct Marketing's daily Tranco top-1M scan (September 22, 2026), Contactlab is the email service provider (ESP) for 117 domains — 0.02% of 637,585 SPF-publishing domains. Its strongest TLD is .it (51.3% of its domains). Detection: include: mechanisms in the SPF record.
Last updated from the 2026-09-22 DNS snapshot.
What Contactlab represents in this dataset
Contactlab — Italian customer engagement platform.
Directory category: Esp. The classification comes from include: mechanisms in the SPF record. It describes observed DNS infrastructure, not a commercial relationship and not the placement of any individual message.
What the 2026-09-22 snapshot shows about Contactlab
Across 12 distinct TLDs its top three are .it (51.3%), .com (37.6%), .es (2.6%) — together 91.5% of the 117 domains, which makes the footprint narrow — three TLDs cover most of it, which is typical of a regional or single-market operator. The service most often observed on the same domains is Microsoft 365 (Mailbox, 48 domains, 41.0% of them), followed by Unknown / Other (13.7%). Directly comparable by the same detection rule: Amazon SES, SendGrid (Twilio), Mailgun. Ranking between them reflects what is published in DNS, not delivery quality or volume sent. All figures come from a single daily DNS snapshot (2026-09-22); a domain appears here when its published records match the include: mechanisms in the SPF record rule, which is an infrastructure fact, not a commercial relationship.
Commonly used together with Contactlab
What else the same 117 domains use — cross-tabulated from the same daily snapshot (2026-09-22).
| Type | Service | Domains | Share of Contactlab users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 48 | 41.0% |
| Mailbox | Unknown / Other | 16 | 13.7% |
| Mailbox | Proofpoint | 15 | 12.8% |
| Mailbox | Google Workspace | 12 | 10.3% |
| Mailbox | Self-Hosted | 8 | 6.8% |
| Mailbox | Cisco IronPort | 6 | 5.1% |
| ESP | Zendesk | 23 | 19.7% |
| ESP | Proofpoint | 17 | 14.5% |
| ESP | MailUp | 16 | 13.7% |
| ESP | Salesforce | 13 | 11.1% |
TLD distribution (top 12 of 12)
Frequently asked questions
How many domains use Contactlab?
117 domains in the Tranco top-1M use Contactlab as their email service provider (ESP) as of September 22, 2026, according to Live Direct Marketing's daily DNS scan.
What is Contactlab's market share?
Contactlab holds 0.02% of SPF-publishing domains in the Tranco top-1M (snapshot of 2026-09-22). The number is recomputed every day.
What are the biggest alternatives to Contactlab?
The largest email service provider (ESP)s in the same category by Tranco top-1M share are: Amazon SES, SendGrid (Twilio), Mailgun, Zendesk, Mailchimp (as of 2026-09-22).
Largest email service provider (ESP)s in this category
Amazon SES (6.22%) · SendGrid (Twilio) (4.67%) · Mailgun (4.01%) · Zendesk (3.77%) · Mailchimp (3.61%) · Mandrill (3.26%) · HubSpot (3.18%) · Salesforce (2.57%) · Mailjet (Sinch) (2.14%) · Cloudflare Email Routing (1.97%)
Domain sample (top 100 by Tranco rank)
Showing 100 of 117 domains.