ContactPigeon email service provider (ESP)
According to Live Direct Marketing's daily Tranco top-1M scan (September 19, 2026), ContactPigeon is the email service provider (ESP) for 288 domains — 0.04% of 642,799 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 288 domains in the Tranco top-1M use ContactPigeon (0.04% of SPF-publishing domains).
- Snapshot date: 2026-09-19 — recomputed every day.
- Strongest TLD: .gr (68.4% of its domains).
- Most co-used service: Self-Hosted.
- Directory category: email service provider.
Why ContactPigeon appears in this category
Greek omnichannel marketing automation (Athens).
We classify it as a email service provider from include: mechanisms in the SPF record matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
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.
Where ContactPigeon sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 0 | 0.0% |
| Top 100,000 | 26 | 9.0% |
| Top 1,000,000 | 260 | 90.3% |
| Unranked | 2 | 0.7% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .gr | 197 | 68.4% | |
| .com | 62 | 21.5% | |
| .bg | 13 | 4.5% | |
| .ro | 3 | 1.0% | |
| .cy | 2 | 0.7% | |
| .eu | 1 | 0.3% | |
| .es | 1 | 0.3% | |
| .ba | 1 | 0.3% | |
| .al | 1 | 0.3% | |
| .it | 1 | 0.3% |
What ContactPigeon users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 288 domains.
| Type | Service | Domains | Share of ContactPigeon users |
|---|---|---|---|
| Mailbox | Self-Hosted | 95 | 33.0% |
| Mailbox | Microsoft 365 | 88 | 30.6% |
| Mailbox | Google Workspace | 61 | 21.2% |
| Mailbox | Unknown / Other | 15 | 5.2% |
| Mailbox | Generic / unmatched (mx*.*) | 5 | 1.7% |
| Mailbox | Generic / unmatched (mail.*) | 4 | 1.4% |
| ESP | Mailendo | 59 | 20.5% |
| ESP | Mandrill | 21 | 7.3% |
| ESP | Amazon SES | 20 | 6.9% |
| ESP | Mailchimp | 20 | 6.9% |
ContactPigeon in Microsoft 365 hybrid mail environments
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) →
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Frequently asked questions
What is ContactPigeon and why would I see it in email SPF records?
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.
How many domains use ContactPigeon?
288 domains in the Tranco top-1M use ContactPigeon as their email service provider (ESP) as of September 19, 2026 (0.04% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is ContactPigeon common enough to affect email deliverability testing?
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.
Which countries or TLDs use ContactPigeon most?
ContactPigeon's largest TLD is .gr (68.4% of its domains); it appears across 16 TLDs in total.