SMS APIs

smstools

SMS and WhatsApp messaging operated from Belgium

BelgiumEUEU hosted Ownership reviewed, controller unresolvedHigh non-EU dependency

Scope verdict

Ownership reviewed, controller unresolved

The Belgian CBE identifies Xtreme Internet Solutions BV (0821.588.020) and corporate director THX Management, represented by Tom Hendrix. The reviewed Gazette filings concern articles and management, not a current shareholder allocation. THX Management is therefore not assumed to be the parent company; ultimate control remains unresolved.

How we classify services

Operational dependency warning

Relies heavily on non-European providers

Current public evidence shows 6 non-European infrastructure or email dependencies across 5 providers: Cloudflare, Mailchimp Mandrill, Meta / WhatsApp, Microsoft, Twilio SendGrid. The reviewed operational path is therefore not entirely European.

Review dependencies ↓

smstools provides an API and web dashboard for SMS sending and receiving, delivery reports, campaigns and automation. WhatsApp Business, voice and virtual numbers add further communication options. The Belgian operator is Xtreme Internet Solutions BV, founded by Tom Hendrix.

The service explicitly states that customer data is stored in the EU and offers a data-processing agreement on request. This supports the EU-hosted label. Public company records establish its operator and management, but do not establish current ultimate shareholder control.

Pricing

Usage-based prices depend on the destination country and volume, not simply the sender’s country. WhatsApp pricing varies by country and template type; numbers and voice have separate charges. A free test account is available, rather than a verified recurring free plan.

Data and operations

Infrastructure and email path

Verified operational dependencies, shown separately from ownership and from the service's core data hosting.

Core service hosting

OVHcloud

European provider
Location
Public API ingress; storage and backup regions not established
Observed
Public API endpoint api.smsgatewayapi.com: A 51.210.183.28 · CNAME smstools-api-bd7ea057fa9f.deltablue.io · AS16276. Identifies a network entry point only; not a complete backend or subprocessor inventory.

Message delivery channel

Meta / WhatsApp

Non-European provider
Location
Not disclosed
Observed
Optional WhatsApp Business channel. The core EU-hosting statement does not establish the location of all downstream messaging infrastructure.

Why this matters

The service documents Meta / WhatsApp for message delivery. When this channel is used, message content and recipient details can pass through this non-European provider. The cited source describes the channel and any location limits.

Public website

Cloudflare

Non-European provider
Observed
A 104.21.65.121, 172.67.163.49 · AS13335

Why this matters

Public DNS routes website visits through Cloudflare. Visitor IP addresses and request metadata can reach this non-European provider; this does not identify the core service's data location.

Incoming business email

Microsoft 365

Non-European provider
Observed
MX 0 smstools-com.mail.protection.outlook.com

Why this matters

Published MX records route incoming business email through Microsoft 365. Correspondent details and message content can therefore enter this non-European provider's systems; MX does not reveal the configured storage region.

Authorised outbound email

stspg-customer.com

Provider control not verified
Observed
Business-domain smstools.com SPF stspg-customer.com; authorization does not prove customer SMS or WhatsApp messages use this provider.

Authorised outbound email

Mailchimp Mandrill

Non-European provider
Observed
Business-domain smstools.com SPF spf.mandrillapp.com; authorization does not prove customer SMS or WhatsApp messages use this provider.

Why this matters

This domain authorises Mailchimp Mandrill to send email. If active, recipient details and message content can be processed by this non-European provider. SPF does not reveal its configured storage region.

Authorised outbound email

SparkPost / Bird

Provider control not verified
Observed
Business-domain smstools.com SPF _spf.eu.sparkpostmail.com; authorization does not prove customer SMS or WhatsApp messages use this provider.

Authorised outbound email

Twilio SendGrid

Non-European provider
Observed
Business-domain smstools.com SPF sendgrid.net; authorization does not prove customer SMS or WhatsApp messages use this provider.

Why this matters

This domain authorises Twilio SendGrid to send email. If active, recipient details and message content can be processed by this non-European provider. SPF does not reveal its configured storage region.

Authorised outbound email

Microsoft 365

Non-European provider
Observed
Business-domain smstools.com SPF spf.protection.outlook.com; authorization does not prove customer SMS or WhatsApp messages use this provider.

Why this matters

This domain authorises Microsoft 365 to send email. If active, recipient details and message content can be processed by this non-European provider. SPF does not reveal its configured storage region.

Public DNS records identify visible providers and routes, not every backend location or private data-region setting.

Infrastructure checked:

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