THE SENDEROO GUIDE
Email marketing in Australia, explained properly.
Everything you need to send a legal, well-built first campaign: the rules, the list-building, the inbox science, and how to read your results honestly. No jargon, no scare tactics.
Plain-English guide to the Spam Act 2003
Written for Australian small business
No legal degree required
CHAPTER MAP
What's in this guide
The basics: what email marketing actually is
The rules: consent, identification, unsubscribe
Building your list the right way
Campaigns that work, and when to send them
Landing in the inbox: deliverability explained
Measuring what matters: reading results honestly
Your checklist: ready to send this week
CHAPTER ONE
What email marketing actually is
Email marketing is sending messages to people who've agreed to hear from you — a seasonal special, a booking reminder, a newsletter — straight into an inbox you don't rent from anyone. Unlike a social post, it isn't filtered by an algorithm deciding who gets to see it. If someone's on your list, your email lands in their inbox, assuming you've done the rest properly, which this guide covers.
For a small business, that ownership matters more than almost anything else online. Your following on any social platform can vanish the day that platform changes its rules. Your email list is yours: you can export it, move it, and keep talking to those people no matter what any platform decides next. A café with four hundred people on its list can fill a quiet Tuesday arvo with one email. A tradie with two hundred past customers can fill next month's bookings before a single ad is bought.
A basic campaign has three parts: a list of people who want to hear from you, a message worth sending — an offer, an update, something useful — and a clear way to act on it: book, buy, reply, visit. Get those three right and the design matters less than people think. Get them wrong and the best-looking template in the country won't save you.
The good news is you don't need a marketing degree or a design background to do this well. You need a list built properly, a message that respects the law and the reader's time, and a habit of sending regularly enough that people remember who you are. That's genuinely most of the job, and the rest of this guide is the detail behind each part.
CHAPTER TWO
The rules you actually need to follow
Commercial email in Australia is governed by the Spam Act 2003, enforced by the Australian Communications and Media Authority, the ACMA. It isn't complicated once you see the shape of it, and getting it right is good practice anyway: the same rules that keep you out of trouble are the ones that keep your emails useful instead of annoying.
Consent comes first. You need permission to email someone — either they signed up for it directly (express consent) or your relationship with them makes it reasonable to assume they'd expect it (inferred consent), like a recent customer. Buying a list, scraping addresses from a website, or emailing everyone who ever handed you a business card doesn't meet that bar. If you can't point to how someone ended up on your list, that's your answer.
Identification comes second. Every commercial email has to clearly say who sent it and how to get in touch — your business name and a real way to reach you, not a no-reply address that goes nowhere. It sounds obvious, and it is, but it's also a legal requirement, not just good manners.
Unsubscribe comes third. Every email needs a working way to opt out, and that request has to be honoured within five business days — in practice, immediately is better. No login required, no "email us to unsubscribe" runaround, no making it harder to leave than it was to join.
None of this is legal advice. The Spam Act covers more detail than one chapter can, and the ACMA publishes guidance worth reading if you're unsure. But if your list opted in, your sender details are real, and the unsubscribe link actually works, you're covering the three things that matter most. Senderoo builds sender identification and a working unsubscribe into every email automatically, and checks every address before you send, so you're not guessing about where it came from either.
CHAPTER THREE
Building your list the right way
The fastest way to ruin email marketing is to start with a list you didn't build. Bought lists, scraped addresses and old contact spreadsheets from three jobs ago aren't just against the Spam Act's consent requirement — they're also full of dead addresses, typos and people who have no idea who you are. Every one of those produces a bounce, a complaint, or silence, and all three hurt your ability to reach everyone else on the list, including the people who do want to hear from you.
Growing a list properly starts with asking, everywhere it's reasonable to ask: a sign-up form on your website, a QR code on the counter or the invoice, a field on your booking form, a mention at the bottom of a receipt. The common thread is that someone takes an action to join — a tick, a tap, a typed email address — not that their details ended up in a spreadsheet because they once walked through your door.
Give people a reason beyond "get our newsletter." Ten per cent off a first order, a seasonal guide, early notice of appointment openings, a loyalty perk — something specific enough that signing up feels like a trade, not a favour. The businesses with the healthiest lists usually aren't the ones with the cleverest copy; they're the ones who made signing up obviously worth it, and asked consistently, every week, not just during a big campaign push.
A sign-up form built properly protects the quality of your list from day one — collecting the right fields, stopping bot sign-ups, and matching your brand closely enough that people trust it's really you.
CHAPTER FOUR
Campaigns that work, and when to send them
Different messages suit different moments. Sending the same type of email every time — always a discount, always a newsletter — trains your list to stop opening. A healthy sending habit mixes a few campaign types, each doing a different job.
Welcome email — the moment someone joins your list, while they're paying attention
Seasonal offer — around a date that matters to your customers, not just to you
Booking reminder — a day or two before, to cut no-shows
New-arrival notice — when there's something genuinely new to see
Review request — a few days after a purchase or visit, while it's fresh
Win-back email — to people who haven't opened in a while, with a reason to return
Plain update — useful news with no offer at all, to stay present without always selling
Pick two or three of these that fit your business and send them on a rhythm you can actually keep up. A modest newsletter sent reliably beats a brilliant campaign you only manage once.
CHAPTER FIVE
Landing in the inbox, not the spam folder
Deliverability is the unglamorous half of email marketing, and it decides whether any of the rest of this guide matters. Write the best subject line in the country, and if your domain hasn't earned the inbox providers' trust yet, it lands in spam, or nowhere at all.
It starts with authentication: three DNS records called SPF, DKIM and DMARC that prove to Gmail, Outlook and the rest that your emails genuinely come from you and haven't been altered on the way. Getting these wrong, or skipping them, is one of the most common reasons small business emails get buried. Senderoo registers your sending domain and sets up all three for you — there's no DNS record for you to find or configure.
Then there's pace. A brand-new sending domain that blasts out ten thousand emails on day one looks exactly like spam to an inbox provider, no matter how welcome the content actually is. Trustworthy sending builds up gradually: small volumes that grow as each inbox provider — Gmail, Microsoft, Yahoo and the rest — accepts the mail without complaints. Senderoo paces every domain this way automatically, adjusting the rate for each provider based on how it's responding right now.
List hygiene matters just as much. Every bounce, every complaint and every dead mailbox you keep emailing drags down your domain's reputation, which is why every address on a Senderoo list is checked against its actual mail server before a campaign can be sent to it — not just spell-checked, verified at the mailbox.
None of this is a guarantee of inbox placement; nobody can honestly promise that. But authentication set up correctly, a sending pace that earns trust instead of spending it, and a list that's genuinely clean put the odds firmly in your favour — which is most of what deliverability actually is.
CHAPTER SIX
Measuring what actually matters
Most email reports show you a number of "opens" and leave you to guess what it means. The honest answer is that a chunk of that number isn't a person at all — it's security software and privacy tools on the receiving end opening the email automatically to scan it, long before anyone actually reads it.
That matters because it changes what you should trust. If your open numbers are inflated by automated scans, you'll think a subject line worked when it didn't, or that a quiet campaign landed fine when it barely got read. Senderoo classifies every open as human or automated and reports them in separate columns, so the number you act on is the number of people, not the number of scanners.
Beyond opens, watch clicks — who acted on what you sent — bounces, complaints, and unsubscribes. A small number of unsubscribes after every send is normal, not a failure: it's your list correcting itself to the people who actually want to hear from you. A rising bounce or complaint rate is the one worth acting on fast, because it affects whether your next campaign gets delivered at all.
Read results over several campaigns, not just one. A single quiet Tuesday send doesn't mean your list has gone cold; a pattern across a month tells you something real. Compare like with like — a reminder email against other reminder emails, not against your best seasonal offer — and you'll start to see what your own audience actually responds to, instead of chasing someone else's benchmark.
DO THIS NEXT
Your checklist for this week
Check your current list only has people who opted in
Add a sign-up form to your website or socials
Write a real sender name and contact address into every template
Add a working unsubscribe link to every email you send
Pick two campaign types you can commit to sending regularly
Set up your own sending domain instead of a generic address
Verify your list before your next send
Write one welcome email for new sign-ups
Decide what you'll actually look at in your reports
Send your first campaign and read the results a week later
QUESTIONS
Questions people actually ask
Do I need a registered business to send marketing emails in Australia?
No. The Spam Act 2003 applies to any commercial electronic message, whether you're a sole trader, a club or a company. What matters is consent, clear sender identification and a working unsubscribe, not your business structure.
What counts as consent under the Spam Act?
Express consent is someone directly asking to hear from you, such as filling in a sign-up form. Inferred consent applies when your relationship makes it reasonable to assume they'd expect your emails, like a recent customer. A list that's bought, scraped or inherited from somewhere else meets neither test.
Can I email people from business cards I've collected?
Only if, when you collected the card, you made it clear you'd be sending marketing emails and they were comfortable with that. A card handed over for a quote isn't the same as an invitation to a newsletter — treat it as a prompt to ask properly, not a free pass to add them.
How long do I have to action an unsubscribe request?
The Spam Act requires it within five business days, but there's no reason to wait that long. Honour it as soon as the request comes in and you'll avoid complaints and keep your sending reputation healthy.
What's the difference between a bounce and a complaint?
A bounce means the email couldn't be delivered, usually because the address doesn't exist or the mailbox is full. A complaint means it was delivered but the recipient marked it as spam. Both affect your sender reputation, but complaints are the more serious signal that your list or messaging needs attention.
Why did my email end up in spam even though people asked for it?
Usually it's authentication or pace, not consent. Missing SPF, DKIM or DMARC records, or sending a large volume suddenly from a brand-new domain, both look like spam to inbox providers regardless of how welcome the content is. Senderoo sets up authentication and paces sending for you to avoid both.
How often should I email my list?
Often enough to be remembered, rarely enough to be welcome. Most small businesses land somewhere between weekly and monthly. Consistency matters more than frequency: a monthly email sent reliably beats a weekly burst that fizzles out after a month.
What's a good open rate for a small business?
There's no honest universal number, and anyone who quotes one is guessing on your behalf. What matters is your own trend over time, read as human opens rather than the inflated total that includes automated scans, and compared against your own past campaigns.
Do I need a website to start building a list?
No. A landing page built from your campaign brief gives you a page to send people to and a form to collect sign-ups, on your own domain, without a website behind it.
Is this page legal advice?
No. It's a plain-English explanation of how the Spam Act 2003 generally applies to small business email marketing. For advice on your specific situation, speak with a legal professional or check the ACMA's published guidance directly.
Your first campaign is closer than you think.
Free to start, set up in minutes, and every address checked before you send a thing.
Create your free account