According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), ContactPigeon is the email service provider (ESP) for 267 domains — 0.04% of 617,702 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
ContactPigeon is an email service provider most commonly detected through SPF authentication records. It handles outbound email delivery for organisations sending transactional and marketing mail.
Its infrastructure footprint reflects a predominantly smaller-scale user base, with significant concentration in Greece and frequent co-occurrence with Microsoft 365 environments. For email practitioners, this pattern indicates organisations outsourcing specific email functions whilst retaining Microsoft 365 as their primary platform—a common arrangement amongst European SMBs seeking to isolate outbound mail reputation from corporate messaging.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 0 | 0.0% |
| Top 100,000 | 19 | 7.1% |
| Top 1,000,000 | 229 | 85.8% |
| Unranked | 19 | 7.1% |
| TLD | Domains | Share | |
|---|---|---|---|
| .gr | 183 | 68.5% | |
| .com | 57 | 21.3% | |
| .bg | 12 | 4.5% | |
| .cy | 2 | 0.7% | |
| .ro | 2 | 0.7% | |
| .al | 1 | 0.4% | |
| .it | 1 | 0.4% | |
| .shop | 1 | 0.4% | |
| .shoes | 1 | 0.4% | |
| .eu | 1 | 0.4% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 267 domains.
| Type | Service | Domains | Share of ContactPigeon users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 85 | 31.8% |
| Mailbox | Self-Hosted | 82 | 30.7% |
| Mailbox | Google Workspace | 54 | 20.2% |
| Mailbox | Unknown / Other | 16 | 6.0% |
| Mailbox | Generic / unmatched (mx*.*) | 5 | 1.9% |
| Mailbox | Barracuda | 4 | 1.5% |
| ESP | Mailendo | 50 | 18.7% |
| ESP | Mandrill | 22 | 8.2% |
| ESP | Amazon SES | 20 | 7.5% |
| ESP | Mailchimp | 19 | 7.1% |
ContactPigeon typically appears in environments where organisations route transactional or campaign mail through a dedicated ESP whilst using Microsoft 365 for internal collaboration and core corporate email. This architecture allows smaller organisations to protect their Microsoft 365 sender reputation by isolating bulk or marketing traffic to third-party infrastructure. When administering such hybrid setups, ContactPigeon's presence in SPF records signals a deliberate separation of mail types, a practice aligned with reputation management but requiring careful coordination of authentication records to prevent conflict.
See the full ContactPigeon data page (KPI cards, trend, sample domains) →
ContactPigeon is an email service provider used by organisations to handle outbound mail delivery. You typically see it in SPF records when a domain outsources mail functions—particularly common in smaller European organisations using Microsoft 365.
267 domains in the Tranco top-1M use ContactPigeon as their email service provider (ESP) as of July 13, 2026 (0.04% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
ContactPigeon 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.
ContactPigeon's largest TLD is .gr (68.5% of its domains); it appears across 16 TLDs in total.