Combell MailProtect (BE) email service provider (ESP)
According to Live Direct Marketing's daily Tranco top-1M scan (September 16, 2026), Combell MailProtect (BE) is the email service provider (ESP) for 343 domains — 0.05% of 634,905 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 343 domains in the Tranco top-1M use Combell MailProtect (BE) (0.05% of SPF-publishing domains).
- Snapshot date: 2026-09-16 — recomputed every day.
- Strongest TLD: .be (48.7% of its domains).
- Region skew: Belgium.
- Most co-used service: Microsoft 365.
- Directory category: email security gateway.
Why Combell MailProtect (BE) appears in this category
Belgian Combell group email security (mailprotect.be).
We classify it as a email security gateway 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.
Combell MailProtect is an email protection and management service operated by Combell, a Belgian hosting and communications company. It provides email filtering, archiving, and security capabilities primarily to organisations across Belgium and the broader European region.
Combell MailProtect's footprint sits predominantly in the long tail of medium-sized and smaller organisations rather than amongst the largest global brands, and is heavily concentrated in the .be domain space. It appears frequently alongside Microsoft 365 deployments, indicating adoption as a supplementary security layer in hybrid email environments. For senders, this distribution pattern suggests that deliverability friction with Combell-protected inboxes will skew toward regional European campaigns rather than global ones; for organisations evaluating their own email stack, it signals a pragmatic choice for cost-conscious filtering in smaller, regionally-focused operations.
Where Combell MailProtect (BE) sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 4 | 1.2% |
| Top 100,000 | 19 | 5.5% |
| Top 1,000,000 | 316 | 92.1% |
| Unranked | 4 | 1.2% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .be | 167 | 48.7% | |
| .com | 65 | 19.0% | |
| .nl | 61 | 17.8% | |
| .eu | 14 | 4.1% | |
| .org | 6 | 1.7% | |
| .net | 6 | 1.7% | |
| .de | 3 | 0.9% | |
| .auction | 2 | 0.6% | |
| .fr | 2 | 0.6% | |
| .io | 2 | 0.6% |
What Combell MailProtect (BE) users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 343 domains.
| Type | Service | Domains | Share of Combell MailProtect (BE) users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 145 | 42.3% |
| Mailbox | Combell MailProtect (BE) | 132 | 38.5% |
| Mailbox | Google Workspace | 31 | 9.0% |
| Mailbox | Self-Hosted | 10 | 2.9% |
| Mailbox | Unknown / Other | 8 | 2.3% |
| Mailbox | Barracuda | 5 | 1.5% |
| ESP | Mailchimp | 51 | 14.9% |
| ESP | Mandrill | 38 | 11.1% |
| ESP | Mailjet (Sinch) | 27 | 7.9% |
| ESP | SendGrid (Twilio) | 23 | 6.7% |
SPF infrastructure and Belgian concentration
Combell MailProtect is typically detected in email infrastructure through SPF include mechanisms, marking its presence as an intermediate handler rather than an authoritative mail exchanger. This pattern—concentrated in .be domains and smaller deployments—means that organisations benchmarking email deliverability against a globally representative sample may underweight Belgian and regional recipients. If your campaign targets the Benelux region or smaller European organisations, explicit testing against Combell-protected inboxes becomes materially more relevant than broad-based deliverability samples might imply.
See the full Combell MailProtect (BE) data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Should I whitelist or test against Combell MailProtect?
If your recipients include Belgian organisations or mid-market European businesses, testing deliverability with Combell-protected inboxes is advisable; for globally focused senders with minimal regional overlap, it may rank lower in testing priority than larger, enterprise-scale providers.
How many domains use Combell MailProtect (BE)?
343 domains in the Tranco top-1M use Combell MailProtect (BE) as their email service provider (ESP) as of September 16, 2026 (0.05% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is Combell MailProtect (BE) common enough to affect email deliverability testing?
Combell MailProtect (BE) accounts for 0.05% 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 Combell MailProtect (BE) most?
Combell MailProtect (BE)'s largest TLD is .be (48.7% of its domains); it appears across 25 TLDs in total.