According to Live Direct Marketing's daily Tranco top-1M scan (July 13, 2026), Spotler is the email service provider (ESP) for 192 domains — 0.03% of 617,702 SPF-publishing domains. Detection method: include: mechanisms in the SPF record.
Spotler is a Dutch email service provider specialising in email marketing and customer communication. It operates as a mid-market platform primarily serving smaller to medium-sized organisations rather than large enterprises, with particular prevalence in the Netherlands and Dutch-speaking regions.
In email filtering and reputation systems, Spotler's long-tail footprint—visible via SPF include mechanisms across smaller sites—means it carries less consolidated brand weight than household-name ESPs, though its consistent presence suggests stable infrastructure. Its frequent pairing with Microsoft 365 indicates it often handles dedicated marketing or transactional email whilst 365 manages corporate mailboxes, a split that can influence how receiving systems evaluate inbound traffic from that domain.
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 1 | 0.5% |
| Top 100,000 | 10 | 5.2% |
| Top 1,000,000 | 159 | 82.8% |
| Unranked | 22 | 11.5% |
| TLD | Domains | Share | |
|---|---|---|---|
| .nl | 123 | 64.1% | |
| .com | 27 | 14.1% | |
| .be | 9 | 4.7% | |
| .eu | 5 | 2.6% | |
| .co.uk | 5 | 2.6% | |
| .net | 4 | 2.1% | |
| .de | 4 | 2.1% | |
| .fr | 3 | 1.6% | |
| .org | 3 | 1.6% | |
| .se | 1 | 0.5% |
Cross-tabulated from the same daily snapshot — the other email services seen on the same 192 domains.
| Type | Service | Domains | Share of Spotler users |
|---|---|---|---|
| Mailbox | Microsoft 365 | 117 | 60.9% |
| Mailbox | Unknown / Other | 26 | 13.5% |
| Mailbox | Generic / unmatched (mx*.*) | 17 | 8.9% |
| Mailbox | Self-Hosted | 8 | 4.2% |
| Mailbox | Google Workspace | 6 | 3.1% |
| Mailbox | Barracuda | 4 | 2.1% |
| ESP | Flowmailer | 27 | 14.1% |
| ESP | Mandrill | 24 | 12.5% |
| ESP | Mailchimp | 21 | 10.9% |
| ESP | Amazon SES | 19 | 9.9% |
When Spotler appears in a domain's SPF record alongside Microsoft 365, it typically signals a deliberate separation: 365 for core business email and Spotler for campaigns or transactional delivery. This segregation can benefit sender reputation—marketing and operational mail are isolated from corporate identity—but requires careful DKIM alignment to avoid authentication drift. Receiving systems may treat Spotler traffic with less automatic trust than Microsoft infrastructure if the sending domain lacks a strong reputation history, so consistent sender behaviour and list hygiene become critical when routing through a smaller ESP.
See the full Spotler data page (KPI cards, trend, sample domains) →
Spotler typically handles a specific email function—usually marketing campaigns or transactional notifications—whilst Microsoft 365 manages core corporate mail; this split reduces reputation risk if one channel encounters deliverability issues and allows tuned authentication policies for each channel.
192 domains in the Tranco top-1M use Spotler as their email service provider (ESP) as of July 13, 2026 (0.03% of SPF-publishing domains), according to Live Direct Marketing's daily DNS scan.
Spotler accounts for 0.03% 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.
Spotler's largest TLD is .nl (64.1% of its domains); it appears across 18 TLDs in total.