Mobile Message includes built-in unsubscribe handling to help you stay compliant with Australian spam laws. When a recipient opts out, the platform automatically blocks further messages to that number.
Unsubscribe handling is automatic and does not require manual processing.
Adding an opt-out message
On the Send Messages page, you can add an opt-out option to your message by clicking Insert Opt-Out Message.
The opt-out message that is inserted depends on the sender you are using.
Opt-out message by sender type
Dedicated number or shared number senders
If your message is sent from a dedicated number or a shared number, the following opt-out message is inserted:
Opt out: Reply Stop
Recipients can reply with “STOP” to unsubscribe.
Custom senders or your own number
If your message is sent from a custom sender or your own number, the following opt-out message is inserted:
OptOut mb.st/<unique code>
This provides a link recipients can use to opt out.
What happens when someone unsubscribes
When a recipient unsubscribes:
Their number is immediately added to your unsubscribe list
All future messages to that number are automatically blocked
This helps ensure compliance with Australian spam laws
You do not need to take any action when someone unsubscribes.
Unsubscribe list
All unsubscribed numbers are stored in a dedicated list in your account.
You can view this list by going to:
Contacts > Unsubscribes
This list shows all numbers that have opted out of receiving messages from your account.
Removing someone from the unsubscribe list
If needed, you can remove a number from the unsubscribe list.
This may be appropriate if the recipient has explicitly asked to be re-subscribed, or you have obtained fresh consent to send messages to them. Once removed, you will be able to send messages to that number again.
Adding numbers to the unsubscribe list manually
You can manually add numbers to your unsubscribe list. This is useful if you are moving from another SMS provider.
To add numbers:
Go to Contacts > Unsubscribes
Click Add Numbers
Paste the list of phone numbers
These numbers will be blocked from receiving messages immediately.
Blocking behaviour
When a number is on your unsubscribe list:
You cannot send messages to that number
Messages will be blocked automatically
Importing the number again will not override the block
Manually entering the number will not bypass the block
It is not possible to send a message to a number while it remains on the unsubscribe list.
Proper unsubscribe handling protects your business and ensures compliance. Mobile Message enforces unsubscribe rules automatically so you can focus on messaging, knowing opt-outs are respected at all times.