Email automation for a small business means four workflows, not forty. A welcome sequence, an abandoned cart or abandoned enquiry follow-up, a post-purchase message and a win-back for people who have gone quiet.
Every platform below can run those four. What separates them is what happens when your list grows, whether you sell products or services, and how the pricing behaves at 5,000 contacts rather than 500.
This list is ordered by who each one suits, not by a score. Skip to the group that matches your business. Deciding which flows to build before buying anything is covered in our guide to marketing automation strategy.
How we checked this list
All fourteen platforms were loaded on their live sites in August 2026 and screenshotted, so every product here resolves and is a real, current company. Free tier limits and pricing tiers were read from the vendors' own pages on the same day.
Pricing on this category moves, and almost every platform charges by contact count rather than by emails sent. Treat the numbers here as the shape of the pricing rather than a quote, and check the vendor page before you commit.
One gap worth naming: ActiveCampaign belongs in the automation group on merit, but its site returned a bot-blocking error to our crawler rather than a page, so we could not verify it to the same standard as the others and left it out. That is a limit of our method, not a judgement on the product.
Where Distribb fits, which is nowhere on this list
We make SEO and content software. We do not make an email platform, we do not send campaigns and we have no business ranking ourselves in a list of email tools.
If you found this page from a Distribb link, the honest answer is that one of the fourteen below is what you need, and the two categories only meet at the point where a blog article becomes a newsletter section.
First, the four automations worth building
Before choosing a tool, know what you are going to build with it. These four cover most of the return for a small business. The wider set of workflows beyond email is covered in our roundup of marketing automation tools for small business.
| Automation | Trigger | Emails | Why it pays |
|---|---|---|---|
| Welcome sequence | New subscriber | 3 to 5 over two weeks | Highest open rates you will ever get |
| Abandoned cart or enquiry | Started, did not finish | 2 to 3 over 48 hours | Recovers revenue already in motion |
| Post-purchase | Order confirmed | 2 to 4 over a month | Drives the second order and reviews |
| Win-back | 90 days inactive | 2 emails, then remove | Protects deliverability by pruning |
Build them in that order. The welcome sequence alone usually justifies the subscription.
Best for most small businesses starting out
1. MailerLite
The one we would point a small business at first. The automation builder is genuinely simple, the free tier covers 1,000 subscribers with automation included, and the paid pricing stays reasonable well past the point where most competitors get expensive.
Best for: service businesses, consultants and anyone whose list is under 10,000.
The catch: it is deliberately not deep. Complex branching logic and advanced ecommerce segmentation are not what this is for.
2. Brevo
Charges by emails sent rather than by contacts stored, which changes the maths completely if you have a large list you email infrequently. Includes SMS, a basic CRM and transactional email in the same account.
Best for: businesses with a big list and a low sending frequency, and anyone who wants SMS in the same tool.
The catch: the interface carries some rough edges from its Sendinblue history, and the free tier caps daily sends rather than monthly.
3. Mailchimp
Still the default, and there is a real argument for the default: every integration supports it, every freelancer knows it, and the templates are good. Automation on the paid tiers is capable enough for the four workflows above.
Best for: teams who need something everyone already knows how to use.
The catch: the pricing counts unsubscribed and inactive contacts on some plans, which is why so many people leave after the list grows. Audit your contact count before renewing.
4. Sender
The cheapest way to get real automation with SMS attached. The free tier is unusually generous at 2,500 subscribers, and the paid plans undercut almost everyone in this list.
Best for: the tightest budgets that still need automation rather than broadcasts.
The catch: a smaller integration library, so check your ecommerce platform or booking system is supported before you migrate.
Best if you sell products online
5. Klaviyo
The standard for ecommerce, and it earns that. The product and order data flows into segmentation properly, so you can build flows around what someone actually bought rather than which link they clicked.
Best for: Shopify and WooCommerce stores past their first year.
The catch: it gets expensive quickly as the list grows, and it is heavier than a store doing a few orders a week needs.
6. Omnisend
Built for the same job as Klaviyo at a lower price, with email, SMS and push in one flow builder. The pre-built ecommerce automations work out of the box, which saves a weekend.
Best for: smaller stores that want Klaviyo-style flows without Klaviyo pricing.
The catch: reporting and segmentation are less deep, which starts to matter once you are running many overlapping campaigns.
7. Drip
Sits between the two above, with strong behavioural automation and a visual builder that handles branching well. Long-standing ecommerce focus and a smaller, more opinionated feature set.
Best for: stores that want deeper logic than Omnisend without moving to enterprise pricing.
The catch: no free tier, and the value only shows once you are running multi-branch flows rather than a welcome series.
Best if your audience is your business
8. Kit
Formerly ConvertKit, and built around the idea that one subscriber can be tagged into many interests rather than sitting on separate lists. That model is the right one for anyone publishing regularly.
Best for: creators, coaches, course sellers and newsletter-led businesses.
The catch: the templates are plain by design. If you want heavily designed HTML campaigns, this is the wrong tool.
9. beehiiv
A newsletter platform with growth and monetisation features attached, including referral programmes and an ad network. Automation is present but simpler than the tools above.
Best for: businesses where the newsletter is the product rather than a channel.
The catch: if you need cart abandonment or CRM-driven triggers, this is not built for that job.
Best when email is one part of a bigger system
10. HubSpot
CRM, forms, landing pages and email in one place, with a free tier that is genuinely usable for a small team. The integration between the CRM and the email is the reason to choose it.
Best for: businesses with a sales process, where the email needs to know what the salesperson did.
The catch: costs escalate sharply as contacts and seats grow, and migrating away later is genuinely painful. Go in knowing that.
11. GetResponse
Email automation plus webinars, landing pages and funnels in one subscription. The webinar feature is the differentiator and it is rare to find it bundled at this price.
Best for: consultants and educators who run live sessions as part of their funnel.
The catch: each bundled module is decent rather than best in class, which is the usual trade with all-in-one tools.
12. Constant Contact
Aimed squarely at local and traditional small businesses, with event management, phone support and a simple editor. The support is a real differentiator if nobody on the team enjoys software. For owners in the same position on a different channel, our guide to video marketing for small business takes the same approach.
Best for: restaurants, clinics, retailers and nonprofits without a marketing person.
The catch: automation is basic compared with everything above it here, and it is not cheap for what it does.
Best for technical teams
13. Customer.io
Triggers on events from your own product rather than on email behaviour, which is the right model for SaaS. Email, push, SMS and in-app in one workflow, driven by whatever your application sends it.
Best for: software businesses with a developer who can send events.
The catch: you need that developer. Without event data it is an expensive version of the simpler tools above.
14. Mautic
Open source and self-hostable, which matters if you have data residency requirements or simply refuse to pay per contact. Full automation, segmentation and campaign building with no licence cost.
Best for: teams with server capability and a strong reason to keep the data in-house.
The catch: you own the hosting, the upgrades and the deliverability setup. That is a real ongoing job, and getting inboxing right on your own infrastructure is harder than any feature in this list.
How to choose in five minutes
Answer three questions. Do you sell products online, do you have a sales process with a CRM, and how big is your list.
Products online and under 5,000 contacts means Omnisend. Products online and growing means Klaviyo. A sales process means HubSpot. An audience rather than a catalogue means Kit.
Everything else means MailerLite, or Brevo if your list is large and you send rarely. That covers most small businesses without further research. The rest of the plan around it sits in our digital marketing tips for small businesses.
A useful companion read from outside our stack: actionable email marketing tips. Related, and worth bookmarking: comprehensive email marketing best practices.
The part no tool fixes
Automation multiplies whatever your list quality already is. A 400-person list of people who asked to hear from you outperforms a 4,000-person list built from a competition entry form, on every platform here.
Which makes the list itself the thing worth working on. How to build an email list covers that half, the sales email blueprint covers what to send once people are on it, and lead generation cost covers what each of those subscribers is worth paying for.
Clean the list before you automate it, remove anyone who has not opened in six months, and send fewer emails than you think you should.
If the content feeding those emails is the bottleneck rather than the sending, that is the part we work on. Distribb publishes the articles that become your newsletter sections, and our guides to AI marketing automation and content marketing automation tools cover what else can be automated once email is running. Whether any of it pays back is a calculation we work through in our guide to marketing automation ROI.