TOPdesk SaaS sender
According to Live Direct Marketing's daily Tranco top-1M scan (September 13, 2026), TOPdesk is the SaaS sender for 446 domains — 0.07% of 628,913 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Key facts
- 446 domains in the Tranco top-1M use TOPdesk (0.07% of SPF-publishing domains).
- Snapshot date: 2026-09-13 — recomputed every day.
- 30-day share change: +0.00 pp.
- Strongest TLD: .nl (39.9% of its domains).
- Most co-used service: Microsoft 365.
- Directory category: SaaS sender.
Why TOPdesk appears in this category
TOPdesk — service desk and ITSM cloud.
We classify it as a SaaS sender 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.
TOPdesk is a Dutch SaaS platform that functions as an IT service management system, sending notifications, escalations, and status updates via email on behalf of customer domains. Organisations authorise TOPdesk to send from their own domain rather than relying on a shared TOPdesk sender address.
TOPdesk's presence in SPF records reveals a long-tail distribution: the platform appears most frequently among mid-market and smaller organisations rather than large enterprises, with particularly dense adoption across the Netherlands and other European regions. When encountered alongside Microsoft 365 (a common pairing), it indicates a hybrid environment where email infrastructure and IT service management are separately managed—a configuration that creates both opportunities and risks for email deliverability, particularly around SPF policy configuration and authentication consistency.
Where TOPdesk sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 6 | 1.3% |
| Top 100,000 | 62 | 13.9% |
| Top 1,000,000 | 378 | 84.8% |
| Unranked | 0 | 0.0% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .nl | 178 | 39.9% | |
| .com | 64 | 14.3% | |
| .be | 28 | 6.3% | |
| .dk | 28 | 6.3% | |
| .ac.uk | 20 | 4.5% | |
| .de | 18 | 4.0% | |
| .com.br | 17 | 3.8% | |
| .edu | 17 | 3.8% | |
| .se | 10 | 2.2% | |
| .no | 9 | 2.0% |
What TOPdesk users also use
Cross-tabulated from the same daily snapshot — the other email services seen on the same 446 domains.
| Type | Service | Domains | Share of TOPdesk users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 317 | 71.1% |
| Mailbox | Unknown / Other | 25 | 5.6% |
| Mailbox | Google Workspace | 22 | 4.9% |
| Mailbox | Self-Hosted | 17 | 3.8% |
| Mailbox | Mimecast | 14 | 3.1% |
| Mailbox | Proofpoint | 9 | 2.0% |
SPF authorisation patterns in service management email flows
Organisations using TOPdesk typically authorise the platform via an SPF include mechanism, allowing it to send email notifications from the organisation's own domain rather than a third-party sender address. This approach preserves domain branding in email but requires careful SPF configuration and ongoing monitoring of TOPdesk's outbound IP reputation. When SPF records are misconfigured or TOPdesk's infrastructure experiences reputational issues, service management notifications risk landing in spam folders or being rejected entirely. Email administrators should treat ITSM notification flows—particularly automated escalations and critical alerts—with the same rigour as marketing or transactional email, ensuring SPF, DKIM, and DMARC policies align correctly and that the authorised sending infrastructure maintains consistent deliverability.
See the full TOPdesk data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Should I test my email system against TOPdesk?
If your organisation uses TOPdesk, verify that your SPF, DKIM, and DMARC setup correctly accommodates its outbound IP space and treat service management notifications as critical delivery channels. If you encounter TOPdesk in incoming email but do not use it yourself, no action is needed—it simply indicates the sender's domain has authorised TOPdesk for notifications.
How many domains use TOPdesk?
446 domains in the Tranco top-1M use TOPdesk as their SaaS sender as of September 13, 2026 (0.07% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Is TOPdesk common enough to affect email deliverability testing?
TOPdesk accounts for 0.07% 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.
Is TOPdesk growing or declining?
TOPdesk has been stable — its share moved +0.00 pp over the last 30 days (as of September 13, 2026).
Which countries or TLDs use TOPdesk most?
TOPdesk's largest TLD is .nl (39.9% of its domains); it appears across 26 TLDs in total.