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Documentation Index

Fetch the complete documentation index at: https://developers.vfbulk.ie/llms.txt

Use this file to discover all available pages before exploring further.

This page provides a developer-focused summary of key compliance requirements. It is not legal advice. Consult a legal professional for full regulatory guidance.

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Opt-out handling

For all marketing and promotional SMS messages sent to Irish numbers, recipients must be given the ability to opt out. The standard opt-out mechanism in Ireland is:
Opt-out keywords
OPTOUT to 50123
  or
STOP to 50123
You are responsible for including opt-out instructions in your marketing messages and for honouring opt-out requests. Once a recipient has opted out, you must not send them further marketing messages.

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Example compliant message

Compliant marketing message
Vodafone: 20% off this weekend only. Shop now at vodafone.ie.
To opt out reply STOP to 50123.

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Handling inbound STOP messages

Set up Inbound Message Relays to receive opt-out replies. When you receive a STOP or OPTOUT keyphrase, remove that number from your active sending list immediately. 
curl -X POST https://example.com/sms/inbound \
  -H "Content-Type: application/x-www-form-urlencoded" \
  -d "SMS-Keyphrase=STOP&SMS-From=353861234567"

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Sender ID registration

All alphanumeric Sender IDs used to send to Irish numbers must be registered with ComReg (Commission for Communications Regulation).

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Transactional vs marketing messages

TypeOpt-out requiredComReg Sender ID required
Marketing / promotionalYesYes
Transactional (order confirmations, alerts, OTPs)RecommendedYes (for Irish numbers)

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Data protection

SMS campaigns targeting Irish recipients are subject to GDPR and the ePrivacy Regulations. Key obligations include:
  • You must have a valid legal basis (typically consent) for sending marketing messages
  • You must maintain records of consent
  • You must honour opt-out requests promptly
  • Personal data (phone numbers) must be processed lawfully and securely
Contact bulktext.ie@vodafone.com if you have questions about compliance requirements for your specific use case.
Last modified on May 6, 2026