I want emails to send themselves after someone buys or enquires: how to set up automated welcome emails
⏱ In about 8 minutes
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In this article
The short answer
Short answer
Pick one trigger (someone signs up, enquires, or buys), write three short emails, set them to send automatically over about a week, test them on yourself, then leave them running. It's a one-afternoon job that keeps working while you do everything else.
You need an email tool with automation. ActiveCampaign is the most automation-focused, Kit includes unlimited automations on its Creator plan, and Brevo is the budget option, with full workflows on its Standard plan.
Why it's worth one afternoon
The moment someone signs up, enquires or buys is when they're paying the most attention to you. If the first thing they hear from you arrives a week later, written in a hurry, you've lost the best moment you'll get.
An automated sequence means every new contact gets the same good first impression, even on your busiest week, and you only write it once.
Fix it: step by step
The time guides are rough, for a small business setting this up for the first time.
Step 1: Pick one trigger (10 minutes)
Start with the one that matters most to your business:
| Trigger | Good for | First email should… |
|---|---|---|
| Newsletter sign-up | Any business with a sign-up form | Welcome them and say what to expect |
| Enquiry form | Service businesses | Confirm receipt and say when you'll reply |
| First purchase | Shops, bookings, online sales | Thank them and help them get value fast |
Do one well before adding more.
Step 2: Check the email is allowed to be automated (10 minutes)
The rules depend on what the email is.
- Purely transactional messages (order confirmations, receipts, booking details) are treated differently from marketing in some countries. In the US, the FTC says transactional or relationship messages are "exempt from most provisions of the CAN-SPAM Act", but warns the law views these categories "narrowly". If you add promotions, it may become a commercial message. (FTC)
- Marketing emails need consent in Australia. The ACMA says you "must first have consent", and inferred consent "does not cover sending messages after someone has just bought something from your business." (ACMA)
Simple rule: put a clear, unticked "send me tips and offers" box on your forms and checkout, and only add people who tick it to the marketing sequence. This is general information, not legal advice.
Step 3: Write the 3-email sequence (45 minutes)
Copy and adapt these. Keep each one short.
Email 1: send immediately
Subject: Welcome to [Business], here's what happens next Hi [First name], thanks for [signing up / getting in touch / your order]. Here's what to expect: [one line: e.g. "one email a month with practical tips" or "we'll reply within one business day"]. In the meantime, here's [one useful thing: a guide, FAQ or booking link]. Any questions, just hit reply. [Name of business]
Email 2: send 2 days later
Subject: The one thing most customers ask us Hi [First name], the question we hear most is [question]. Here's the short answer: [2–3 sentences]. If that's useful, [one clear next step: book, reply, read]. [Name of business]
Email 3: send 5–7 days later
Subject: Can we help with anything? Hi [First name], just checking in. If you're thinking about [service/product], here's how to [take the next step]. If now's not the right time, no problem; you'll hear from us [frequency]. [Name of business]
Every marketing email needs your business name and contact details and a working unsubscribe. The ACMA requires unsubscribe requests to be honoured "within 5 working days"; the FTC says "within 10 business days". (ACMA · FTC)
Step 4: Build it in your tool (30 minutes)
In most tools the steps are: create an automation → choose the trigger (form submitted, tag added, purchase made) → add email 1 → add a wait step → add email 2 → wait → email 3 → turn it on.
Step 5: Test it on yourself (15 minutes)
Sign up with your own address (and a second address on a different provider). Check that every email arrives, the links work, your name and unsubscribe show correctly, and nothing lands in spam. If it does, see why business emails go to spam.
Step 6: Measure what matters, monthly (10 minutes)
Look at three things: replies (the best sign), clicks on your one next step, and unsubscribes (if high, the emails are too frequent or not useful). Treat open rates as a rough guide only.
Quick pick
Quick pick: email tools with automation (product details from official vendor pages, checked 18 Oct 2026. Not hands-on tested. No ratings. Confirm prices and features on the vendor's site.)
Best for most small businesses that want automation to grow with them: ActiveCampaign. Marketing automation on every plan and 950+ automation recipes. Starter listed from A$23/month billed annually (shown in AUD for our location), limited to 5 actions per automation, and ActiveCampaign lists "Wait" as one of those actions, so an email–wait–email–wait–email series uses all five (ActiveCampaign help). Free trial. → See our email marketing guide- If you're on a tight budget: Brevo. Forms can "automatically trigger follow-up emails as soon as someone signs up", and the Standard plan (US$18/month for the 5,000-emails tier) adds unlimited multi-step workflows. Free plan available. Note: Brevo disclosed two security incidents in September 2026 (an account-access flaw and malicious code briefly served from its website and embeddable scripts); see Brevo's write-up. → See our email marketing guide
If you sell content or digital products: Kit. Creator plan lists unlimited visual automations and email sequences, from US$33/month billed yearly at 1,000 subscribers. 14-day free trial. → See our email marketing guide
Side-by-side comparison: Which email tool is easiest?
What we'd avoid: honest limits
Free: the Small Business Password & Access Checklist
A 1–2 page checklist that turns this article into a to-do list: which accounts to protect first, how to set up shared access, and what to do when someone joins or leaves.
You only get emails if you tick the consent box. Unsubscribe any time. See our privacy policy.
Frequently asked questions
How many emails should a welcome sequence have?
Three is a good start: welcome, one useful answer, and a gentle next step.
Can the sequence stop when someone replies or buys?
Most automation tools can stop or change a sequence based on actions like a purchase or a tag. Check your tool's automation settings.
Should I send a welcome email for orders too?
Send the order confirmation straight away. Keep marketing content for people who opted in.
What if my welcome emails go to spam?
Authenticate your domain (SPF, DKIM, DMARC) through your email tool. See our spam guide.
Related guides
- Email marketing: our hub
- Leads go cold because I forget to follow up
- I've got customer emails but never send anything
- Which email tool is easiest when I have no time?
Sources
Government bodies first. All links checked and loading on 18 Oct 2026.
- Australian Communications and Media Authority: Avoid sending spam
- US Federal Trade Commission: CAN-SPAM Act: a compliance guide for business
- Vendor pages (checked 18 Oct 2026): ActiveCampaign pricing · Brevo pricing · Brevo pricing reference · Kit pricing
About our review process
We pick products from official information and say clearly when we haven't tested something hands-on. Commissions may influence which products we choose to cover, but not our assessment of them. See how we work.