Email automation means emails that your software sends by itself when a subscriber does something, or when a set amount of time has passed, rather than emails you write and send to the whole list by hand. A sequence of automated emails is usually called a flow, an automation or a workflow, depending on the platform.
How email automation works
Every automation is built from the same few parts:
- A trigger: the event that starts it, such as joining the list, placing an order, leaving items in a basket, a date like a renewal, or a tag being added in your CRM.
- Delays: how long to wait before each step, for example one hour, three days or five weeks.
- Conditions: branches that send different people down different paths, such as first-time buyers versus repeat buyers.
- Actions: sending an email, adding a tag, updating a field or alerting a member of staff.
- Exit rules: what removes someone from the flow, such as completing the purchase it was encouraging.
Take an online loose-leaf tea shop. A new subscriber gets a welcome series of three emails over ten days. Someone who adds tea to their basket but leaves receives an abandoned cart email an hour later, unless they buy first. Three days after delivery, a buyer gets brewing advice for what they ordered, and around the time a 100g pouch would run out, a reorder reminder.
A service business works the same way. An accountancy firm might send four emails over two weeks to anyone who downloads its guide to Self Assessment, and alert a partner when someone from that group clicks the fees page.
Why it matters
Automated emails arrive when the reader’s interest is highest: straight after signing up, while the basket is still on their mind, or when they are likely to need to reorder. They keep working on days when nobody has time to write a campaign, which suits most small UK businesses better than a weekly newsletter they struggle to keep up.
Automation does not change the legal position. Under PECR, a marketing email needs the person’s consent or a valid soft opt-in, whether a person or a program presses send. A basket reminder exists to encourage a purchase, so treat it as marketing. Order confirmations and delivery updates are service messages, but adding promotions to them turns them into marketing too.
Common mistakes
- Missing exit rules. The customer buys, then receives “you left something behind” an hour later.
- Clashing with campaigns. A new subscriber gets two welcome emails, a sale campaign and a basket reminder on the same day. Most platforms let you cap how many emails one person receives in a period.
- Set and forget. Flows built two years ago still mention discontinued products, old prices or expired discount codes.
- Unreliable triggers. A flow based on a field your shop does not update correctly fires at the wrong people.
- Too much, too fast. Seven emails in a week to someone who signed up for a monthly newsletter invites complaints.
How to act on it
Map the moments when a customer would welcome hearing from you, then build the welcome series first and one flow tied to revenue or enquiries second. Write the exit rules before the emails. Put a recurring date in the diary, every three months, to click every link and check every offer in every live flow.
Measure each flow on what it produces, such as orders or booked calls, not on opens. If you want automation planned as part of a wider marketing automation set-up, start with a digital marketing strategy that decides what each channel is for.