How to set up SMS marketing in Spain?
Starting September 2026, Spain’s telecom regulator, the CNMC (Comisión Nacional de los Mercados y la Competencia), requires all SMS sender names sent to Spanish phone numbers to be registered and confirmed. If your sender name isn’t registered, it can be blocked, and your messages may not be delivered to recipients in Spain.
GetResponse works with its SMS delivery partner, Vonage, to handle the registration on your behalf. To do that, Vonage needs a signed authorization from you, along with some details about your business or organization.
SMS feature is currently available in:
- MAX accounts
- self-service accounts (Starter, Marketer, Creator) based in Poland
This article applies to MAX accounts only.
Due to the risk of SMS mass pumping attacks increasing on a global scale, note that whenever your’e launching a campaign in a new market you should get familiar with local market-specific guidelines directly from our provider Vonage website. We’re not able to ensure top-notch deliverability without meeting those requirements by our customers, often this means P2P contact with Vonage to go through formalities:
Country-Specific Features and Restrictions – Vonage API Support
Step 1: Sign a Letter of Authorization (LOA)
Before Vonage can register your sender name with the CNMC, it needs a signed Letter of Authorization (LOA) from you, authorizing Vonage to act on your behalf before the regulator. Without a signed LOA, your sender name can’t be registered.
- You’ll receive an LOA template from our Customer Success Team, along with instructions on how to fill it in.
- Complete and sign the LOA.
Step 2: Provide your registration details
Along with the signed LOA, you’ll need to provide:
- Sender name – your sender name (sometimes called a sender ID) and how it’s connected to you
- Holder type – individual or company
- Tax ID – NIF/NIE/passport (individuals) or CIF/NIF (companies)
- Holder name – your legal name
- Representative details – name, tax ID, email, and phone number
Step 3: Wait for your registration to be submitted
Once you’ve returned the signed LOA and your details, GetResponse and Vonage process the registration and forward it to the CNMC. You don’t need to do anything else at this stage.
Step 4: Respond to the CNMC’s email
After your registration is submitted, the CNMC will contact you directly by email, asking you to log in to the CNMC portal (using your digital certificate) to:
- Upload proof of ownership of your sender name.
- Approve Vonage as your registered provider.
Once the CNMC notifies you, you have 10 business days to upload proof of ownership and 10 business days to approve Vonage as your provider. If the CNMC requests corrections, there’s a 10-day window to respond. Missing any of these can make the application lapse and require a restart.
Note: The CNMC’s email comes from the regulator itself, not from GetResponse or Vonage. Always act through the official CNMC portal – never by replying to the email directly. If you’re ever unsure whether a message is genuinely from the CNMC, don’t click any links in it and check with our support team first.
Step 5: Wait for the CNMC’s review
The CNMC then validates the request: normally up to 1 month, but up to 3 months during the first 6 months after the rule takes effect (2026 registrations can be prolonged).
Once the CNMC approves your registration, your sender name is authorized to send SMS messages to recipients in Spain.
You can also review Vonage’s own guidelines on this requirement.