Unsubscribe Message

An unsubscribe message is a short, mandatory instruction included in SMS or email communications that allows recipients to opt out of future messages at any time. It is a fundamental component of compliant business messaging, used across marketing campaigns, transactional notifications, and promotional SMS sends, to honour user consent and meet regulatory requirements.

A standard unsubscribe message example looks like this:

"Reply STOP to unsubscribe. Msg & data rates may apply."

Businesses are legally required to include an unsubscribe message to comply with SMS messaging regulations in their region. In countries including the United States, Australia, Canada, and the United Kingdom, regulations such as the TCPA, Spam Act 2003, CASL, and PECR mandate that recipients always have a clear, accessible way to opt out of commercial messages.

In many cases, opt-out instructions are also introduced during the opt-in process as part of consent disclosures, for example: "Reply STOP to unsubscribe." However, these instructions must still appear in ongoing messages as active reminders, not just at the point of sign-up or during the SMS opt-in process.

Notifyre automatically handles unsubscribe message delivery and opt-out processing, ensuring your SMS communications remain compliant without any manual intervention. Learn more about Notifyre's SMS compliance features.

SMS Compliance and Unsubscribe Requirements by Country

SMS compliance in many countries requires businesses to send unsubscribe messages in every commercial communication. Failing to include opt-out instructions can result in regulatory penalties, carrier filtering, and reputational damage. Here is a summary of key regional requirements:

How an Unsubscribe Message Works

An unsubscribe message provides clear opt-out instructions, typically placed at the end of an SMS, so recipients know exactly how to stop receiving communications.
The process works as follows:

1. Opt-out keyword is sent: The recipient replies with a recognised keyword such as STOP, UNSUBSCRIBE, CANCEL, END, or QUIT.

2. System processes the request: The messaging platform automatically flags the number as opted out and removes it from active send lists.

3. Unsubscribe confirmation message is sent: The user receives an unsubscribe confirmation message acknowledging their request, for example: "You have successfully unsubscribed and will no longer receive messages from us."

4. Future messages are suppressed: Any subsequent sends to that number are automatically blocked, protecting the business from compliance violations.

This automated workflow ensures recipients can manage their communication preferences instantly, without needing to contact support or take additional steps. With Notifyre, opt-out keywords are recognised and processed automatically, and unsubscribe confirmation messages are sent in real time, keeping your business compliant and your customers in control.

Types of Unsubscribe Messages

Understanding the different formats helps businesses implement the right approach for their messaging use case.

Simple Unsubscribe Message

A simple unsubscribe message provides a direct, no-frills opt-out instruction appended to the body of an SMS. It is the most widely used format and the baseline for compliance. Simple unsubscribe message example:

"Reply STOP to unsubscribe."

This format works for the majority of business SMS sends, including promotions, alerts, and appointment reminders. A simple unsubscribe message is easy to understand, takes minimal character space, and satisfies regulatory requirements in most jurisdictions.

Text STOP to Unsubscribe Message

A text STOP to unsubscribe message uses a standardised, universally recognised opt-out keyword. STOP is the most widely accepted keyword across carriers and compliance frameworks globally, making it the recommended format for businesses sending SMS at scale. Text STOP to unsubscribe message example:

"Text STOP to opt out. Msg & data rates may apply."

Using STOP as the opt-out keyword ensures compatibility with carrier-level filtering systems and aligns with CTIA guidelines in the US, as well as best practice standards internationally.

Unsubscribe Confirmation Message

An unsubscribe confirmation message is an automated reply sent to a recipient immediately after they successfully opt out. It serves as acknowledgment that their request has been received and processed. Unsubscribe confirmation message example:

"You have successfully unsubscribed and will no longer receive messages from [Business Name]. No further action is required."

Sending an unsubscribe confirmation message is not just good practice. In some jurisdictions it is expected as part of a compliant opt-out flow. It also builds trust by confirming to the user that their preference has been respected immediately.