Australia
Cold email in Australia: the Spam Act 2003
Australia’s Spam Act requires three things of every commercial electronic message with an Australian link: consent, clear identification of who sent it, and a working unsubscribe. For B2B cold email, consent can be inferred from a work address that was conspicuously published, under strict conditions.
As of 8 November 2026 · Regulator: Australian Communications and Media Authority (ACMA)
This is general information, not legal advice.
It summarises the law as published on 8 November 2026. Laws, guidance and how regulators apply them change, and your situation may differ. For decisions that matter, ask a lawyer qualified where you and your recipients are.
When it applies
The Act covers commercial electronic messages, including email, that have an Australian link, for example because the message originates in Australia or the sender or recipient is connected to Australia in the ways the Act lists (Spam Act 2003).
1. Consent
You need consent before sending, including when someone sends on your behalf. Express consent (a form, a ticked box, a conversation) is best practice, and it’s up to you to prove you have it. You can’t send an electronic message to ask for consent (ACMA).
Consent can also be inferred. The ACMA describes inferred consent from an existing relationship, such as a subscriber, account holder or member, where the marketing relates directly to that relationship. Schedule 2 of the Act also allows consent to be inferred from a conspicuously published address, but only if:
- the address was published for work-related purposes and the account-holder agreed to the publication;
- the publication isn’t accompanied by a statement that they don’t want unsolicited commercial messages; and
- your message relates to their work-related business, functions or duties.
Consent can’t be inferred from the mere fact that an address was published.
2. Identify yourself
Each message must clearly and accurately identify the person or organisation who authorised it and give accurate contact details, which must stay valid for at least 30 days after sending.
3. Unsubscribe
Every commercial message needs a functional unsubscribe with clear instructions, honoured within 5 working days, free (beyond normal charges), working for at least 30 days after sending, and not requiring extra personal information, a login or an account.
Lists and harvesting
You stay responsible for consent on every address on a bought or rented list. Using or supplying lists made with address-harvesting software, or the software itself, is prohibited.
What every email needs
- Accurate identification of the business that authorised the message
- Accurate contact details, valid for at least 30 days
- A clear, free, functional unsubscribe that needs no login
What Inboxed does automatically
- Adds your company name and postal address to the footer of every campaign email, and blocks a campaign from launching until they’re set (Settings → Compliance, or per campaign).
- Adds a visible unsubscribe line and one-click unsubscribe headers (RFC 8058) to every campaign email. A click takes effect straight away, for everything your workspace sends, with no login or extra details asked.
- Treats replies such as “unsubscribe”, “remove me” or “stop emailing” as an unsubscribe.
- Keeps a suppression list that every campaign checks before each send. Unsubscribes and spam complaints can’t be removed by your team; you can also block whole companies by domain.
- Verifies every lead before sending and never charges for addresses that fail.
What you must do
Inboxed can’t decide who you may lawfully email. These parts are your responsibility:
- Have express or inferred consent for every Australian recipient, and keep evidence (for a published address: where it was published, when, and why your message fits their role).
- Not use bought lists you can’t verify consent for, or anything built by harvesting software.
- Make sure the business named in the footer is the one that authorised the message, and keep its contact details valid.
- Not send an email to ask for consent.
Penalties
Civil penalties are set in penalty units per contravention, with a daily cap, and are higher for anyone with a prior record (section 25). The ACMA can take enforcement action against businesses that break the rules.
Common questions
Can I cold email Australian businesses?
Only with consent. Consent can be inferred from a conspicuously published work address if it was published with the person’s agreement, without a statement refusing unsolicited messages, and your email relates to their work role.
How quickly must I process an unsubscribe in Australia?
Within 5 working days. Inboxed applies unsubscribes immediately.
Is a bought list allowed?
You remain responsible for consent on every address, and lists built with address-harvesting software are prohibited.
Sources
Sources checked on 8 November 2026. Rules change, so check the source before you rely on a detail.
- Avoid sending spam · Australian Communications and Media Authority (ACMA)
- Spam Act 2003 (Cth) · Federal Register of Legislation
Other countries
- United States: CAN-SPAM Act
- European Union: GDPR and ePrivacy
- United Kingdom: PECR and UK GDPR
- Canada: CASL
Related: one-click unsubscribe · the complete cold email guide · acceptable use policy · start free