Who this reaches
Senders of commercial electronic messages with an Australian link. Whether a message is commercial depends on its content and purpose, not the name of the email product used to send it.
What the rule requires
Commercial messages generally require consent, accurate sender identification and contact details, and a functional unsubscribe mechanism. The sender remains responsible when another provider sends on its behalf.
What changes when the email path is regional
Boundry provides transactional delivery primitives and regional suppression/event data that can form part of the customer's messaging controls.
What your team still owns
Boundry does not infer consent, decide whether content is commercial, author the required sender information, or operate the customer's complete unsubscribe and marketing-governance process.
Read the primary sources
This is an engineering and vendor-evaluation guide, not legal advice. Confirm the current rule for your entity, contract, and workload from the primary source.