Regulation BroadNet answer

How do I handle SMS opt-outs?

Last reviewed July 22, 20261 min readReviewed by BroadNet engineering

Quick answer

Honour opt-outs instantly and permanently: recognize standard keywords like STOP (and localized equivalents), add the number to a suppression list, stop all marketing to it immediately, and confirm the opt-out once. Handling opt-outs correctly is both a legal requirement in most markets and a deliverability protection — repeated messaging to people who opted out damages sender reputation.

Plain-language definitionVendor-neutralReviewed July 22, 2026

The long answer

Everything worth knowing, nothing that isn't.

§01

Recognize the keywords

Support STOP, UNSUBSCRIBE, and their localized equivalents on your two-way number, and process them automatically through your inbound webhook. See /answers/what-is-two-way-messaging and /answers/what-is-a-messaging-webhook.

§02

Suppress permanently

Add opted-out numbers to a do-not-contact list checked before every send, so the number never receives another marketing message unless the user explicitly re-subscribes. See /answers/what-is-dnc.

§03

Confirm once, then stop

Send a single confirmation of the opt-out, then nothing further — continuing to message after STOP is a violation and a trust breach. Keep an auditable record of the request and the date.

§04

Separate transactional messages

Essential transactional messages (like security alerts) are generally distinct from marketing opt-outs, but keep the categories clearly separated and never use a transactional channel to slip in marketing. See /answers/sms-compliance-checklist.

BNWritten by the BroadNet engineering team·Operating carrier-grade messaging since 2003, headquartered in Dubai·Editorial standards

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