If these sequences need ongoing maintenance rather than a one-off setup, our email marketing agency Australia service covers deliverability, exclusions and revenue-focused reporting.
Short answer: the five automated sequences worth building for almost any Australian business are the welcome sequence, abandoned cart, post-purchase, re-engagement and lead nurture - each with a clear exit condition so a contact who converts or unsubscribes stops receiving it. Beyond the five sequences themselves, the work that actually protects revenue is deliverability hygiene, suppression logic that stops sequences overlapping, and treating consent and unsubscribe requirements under the Spam Act 2003 as a design constraint rather than an afterthought.
Setting up email marketing automation is straightforward in most platforms. What separates sequences that convert from sequences that quietly erode trust is what happens around them - when a contact should stop receiving a flow, how the sending domain is authenticated, and how consent is captured and honoured under Australian law.
The Five Core Sequences
A welcome sequence, typically three to five emails over the first couple of weeks, introduces a new subscriber to your brand, delivers whatever they signed up for, and makes an early offer while attention is highest. An abandoned cart sequence, usually two to three emails over the following 24 to 72 hours, reminds a shopper what they left behind and addresses likely objections. A post-purchase sequence follows a sale over the next few weeks with delivery updates, usage guidance and a review request. A re-engagement sequence targets subscribers who have gone quiet for a defined period, typically somewhere between 60 and 120 days depending on your typical purchase cycle, with the goal of either reactivating them or identifying who should be suppressed. A lead nurture sequence, longer and more educational, moves a prospect with a longer sales cycle from initial interest toward a sales conversation.
Designing Exit Conditions Before You Build Anything
Every sequence needs a clearly defined exit condition decided before the emails are written, not discovered after a customer complains. A welcome sequence should stop the moment someone makes a purchase or books a call, and hand them into either a post-purchase flow or the regular newsletter rather than continuing to sell them something they already have. An abandoned cart sequence must stop for that specific cart the instant the purchase completes - continuing to chase someone for an item they've already bought is one of the more common automation failures, and it reads as either careless or, worse, as if the business isn't tracking its own customers properly.
Suppression Logic Between Sequences
Sequences rarely run in isolation, so the platform needs rules that prevent two of them firing on the same contact at once. A subscriber who abandons a cart while already partway through a welcome sequence shouldn't receive both simultaneously - decide in advance which sequence takes priority, and suppress the other for the duration. The same logic applies to re-engagement: a contact who has just purchased shouldn't be flagged as dormant and pulled into a win-back sequence because the automation is only looking at email opens rather than actual purchase activity. Mapping these overlaps on paper, sequence by sequence, before configuring anything in the platform avoids a subscriber receiving conflicting messages in the same week.
Authentication and Sender Reputation
Deliverability starts before a single email is written. SPF, DKIM and DMARC records authenticate your sending domain and tell inbox providers that mail claiming to be from your business is genuinely from your business - without them, legitimate campaigns are increasingly likely to land in spam or be blocked outright as mailbox providers tighten authentication requirements. Warm up a new sending domain gradually rather than launching a full contact list on day one, since a sudden volume spike from an unproven domain is itself a signal that triggers spam filtering.
List Hygiene as an Ongoing Discipline
A list full of invalid addresses, old role accounts and long-dormant contacts drags down open rates and, more importantly, damages the sending reputation that determines whether your emails reach anyone's inbox at all. Remove hard bounces immediately, and treat a defined period of no opens or clicks as a trigger to either run a re-engagement sequence or remove the contact from regular sends. This isn't just an inbox-placement issue - a smaller, genuinely engaged list that opens and clicks consistently will outperform a much larger list padded with contacts who haven't interacted in over a year.
Consent and Unsubscribe Requirements Under the Spam Act 2003
Australian businesses sending commercial electronic messages - email, SMS or instant message - need to meet three core obligations under the Spam Act 2003: consent, sender identification, and a functional unsubscribe facility. Consent can be express, where someone has actively opted in, or inferred from an existing business relationship, but it isn't unlimited or permanent - a business relationship that's gone cold doesn't indefinitely justify ongoing marketing messages. Every commercial message needs to clearly identify who sent it and how the recipient can contact that business, and it must include a working unsubscribe option that a recipient can act on within a reasonable timeframe, with the platform actually removing them rather than the request sitting unactioned. Treat these as non-negotiable design requirements for every sequence, not something to bolt on to the footer template once the campaign is otherwise finished.
Measuring Each Sequence Separately
A single blended open rate across the whole account hides more than it reveals. Welcome sequences should be judged on open rate and how many recipients take the introductory offer. Abandoned cart sequences should be judged on recovery rate as a proportion of carts abandoned, not on revenue alone, since revenue can rise or fall with traffic independent of how well the sequence is performing. Post-purchase sequences are best judged on review submission rate and repeat purchase rate over a following period, such as 90 days. Re-engagement sequences should track both reactivation and unsubscribe rate together, since a high unsubscribe rate from a win-back attempt is a useful, if unwelcome, signal about list quality. Lead nurture sequences, with a longer cycle, are better measured on progression to a sales conversation than on any single email's open rate.
What to Review Quarterly
Automations left untouched for years quietly leak performance as offers date, links break, and audience expectations shift even though the mechanics keep running exactly as configured. On a quarterly basis, check that every link in every sequence still resolves, that any offer or pricing mentioned is current, that exit conditions are still firing correctly for recent purchases or unsubscribes, and that authentication records haven't been disrupted by a change to sending infrastructure or a new integration. This is also the point to reassess suppression rules, since a sequence built when the business ran one product line may need adjusting once a second product or service has been added to the catalogue.
Choosing a Platform for These Sequences
Platforms built around ecommerce data, such as Klaviyo, tend to handle cart and post-purchase sequences well because they connect directly to purchase and product data without extra integration work. Platforms built around CRM data suit lead nurture sequences for service businesses with a longer sales cycle, since the automation needs to reference where a contact sits in a pipeline rather than what they've bought. The platform matters less than actually building, monitoring and maintaining the sequences consistently - a simple set of five working sequences with clear exit conditions will outperform an elaborate build that nobody reviews.
What to Ask a Provider Building These For You
If you're briefing an agency or freelancer to build these sequences, ask specifically how they'll handle exit conditions and cross-sequence suppression, what authentication setup they'll put in place before sending volume ramps up, and how they plan to keep consent records and unsubscribe handling compliant as your list grows. These questions catch most of the problems that only surface months later, once a sequence has been running unreviewed and quietly working against the business rather than for it.
Where to go next
- Email marketing agency services - sequence build and ongoing management
- Email marketing services - platform setup, authentication and deliverability
- B2B SEO services - align organic content with lead nurture sequences
- Ecommerce SEO: product page optimisation
- What is conversion rate optimisation?
