MailerLite Starter Guide: From Your First Account to Your First Email Campaign

What is MailerLite?

Email marketing software does three jobs that are hard to do from a normal inbox: it stores the people who asked to hear from you, it lets you design and send one email to many of them at once, and it handles the legal and technical basics such as unsubscribe links and bounce handling.

MailerLite is one of those tools. Its own help center describes it as an email marketing tool and website builder with a focus on simplicity, including a drag-and-drop email editor and a subscriber management interface.

The words you will see everywhere

• Subscribers: the people on your list, each with an email address and any extra details you collect.
• Campaigns: one-off emails you send to some or all subscribers, such as a newsletter or an announcement.
• Forms: signup boxes, pop-ups or landing pages that collect new subscribers.
• Groups: collections of subscribers you put together, for example everyone who signed up through your shop.
• Segments: audiences built from conditions, for example everyone who joined in the last 30 days.
• Automations: emails that send by themselves when something happens, such as a welcome email after someone signs up.

Who it suits, and how much you need

Small online stores, service businesses, coaches, creators and local businesses can all use a tool like this. For most beginners, a simple setup is enough: one signup form, one audience, one welcome email and a regular newsletter. Segments, multiple automations and integrations become useful later, once you know what your subscribers respond to.

Before you create your account

You can start planning before your website is finished or before you have a single subscriber. Gather these first so setup goes smoothly:

Create and configure your MailerLite account

MailerLite's own getting-started article describes the signup in a few steps. In general terms:

1. Open MailerLite using the button below and choose to sign up.
2. Enter your company or organisation name, your email address and a strong password, then create the account.
3. Answer the short onboarding questions about how you plan to use MailerLite, and verify your email address through the message MailerLite sends you.
4. Look around the dashboard. MailerLite shows a checklist of recommended setup tasks based on your goals.
5. Before sending campaigns, check which requirements apply to your account, such as sending-domain authentication.

Configure your sending domain

Your website domain is where people visit you, such as yourshop.com. Your sending address is the email address your newsletters come from, such as hello@yourshop.com. Sending from your own domain looks more professional and consistent than a free webmail address.

Domain authentication is how you prove to inbox providers that MailerLite is allowed to send email on behalf of your domain. In practice, MailerLite shows you a few DNS records, and you add them at the company where your domain is registered or hosted. According to MailerLite's documentation, authentication is required when you send from a custom domain, and some DNS providers can be connected automatically.

Setup options and requirements vary by account, domain and current MailerLite policy. Follow MailerLite's domain authentication guide for the current steps.

Build your first subscriber list

A subscriber list is a group of people who explicitly agreed to receive your marketing emails. That permission is the foundation of everything else: it keeps you on the right side of anti-spam rules and it means people actually expect your emails.

Adding contacts you already have

If existing customers or contacts have agreed to receive your emails, you can add them. MailerLite's help center lists several import methods, including uploading a CSV or TXT file, pasting from a spreadsheet and adding subscribers one by one. A CSV is simply a spreadsheet saved as plain text, with one row per person and a column for each detail such as email and first name.

• Check where each contact came from and whether they agreed to marketing emails.
• Remove duplicates, obvious typos and addresses that are no longer in use.
• Never re-add people who previously unsubscribed.
• Keep a record of how and when people signed up.

Groups versus segments

Groups are collections you assign people to, either by hand or automatically through a form. Example: everyone who signed up through your workshop form goes into a 'Workshop' group. Segments are built from conditions and update themselves. Example: subscribers who joined in the last 30 days. Which segment conditions are available can depend on your plan and on what data you collect.

Create your first signup form

A signup form is how new people join your list. In MailerLite you create forms from the forms area of your account: you choose a type (such as an embedded form, a pop-up or a landing page), pick which group new subscribers join, design the form and then publish or embed it.

Decide what to ask for

Start with as few fields as possible. An email address is enough to send a newsletter, and a first name is useful if you plan to personalise greetings. Only ask for more when you have a concrete use for it.

Say clearly what people will get

People sign up when they understand the value and know what to expect. Explain what you send, how often and why it is worth their inbox.

Place the form where interested visitors already are: your homepage, the footer, a blog post or a dedicated landing page. If you want ready-to-paste form code or copy ideas, try the Email Signup Form Generator or the Signup Form Copy Generator.

Create and send your first newsletter

1. Define one clear objective, such as announcing a product or sharing one useful tip.
2. Choose the audience: your whole list or a specific group.
3. Draft the subject line and preview text.
4. Write the email content.
5. Add one clear primary call to action when it fits the goal.
6. Check the sender name, sender address and campaign settings.
7. Preview the email on desktop and mobile.
8. Send a test email to yourself and read it in your real inbox.
9. Schedule or send the campaign when you are happy with it.

What each part does

• Subject line: the reason to open. Clear and honest beats clever and vague. The Email Subject Line Generator gives you options to compare.
• Preview text: the short line next to the subject in many inboxes. Use it to add context rather than repeat the subject; the Email Preview Text Generator can help.
• Sender name and address: who the email is from. Use a name people recognise and keep it consistent.
• Email body: the message itself. One main idea is easier to read than five.
• Call to action: the one thing you want readers to do next. The Email CTA Generator suggests button text.

A reusable newsletter outline

• Opening: why this email matters to the reader right now.
• Main content: one useful idea, update or offer.
• Next step: one clear action.
• Closing: a natural sign-off from a real person.

Stuck on the first draft? The Newsletter Generator writes a starting point you can edit. There is no single ideal email length, sending time or subject line formula; what works depends on your audience, so test and learn.

Create a simple welcome email automation

An automation sends emails by itself when something happens. A welcome sequence is the most useful one to start with: new subscribers are often most interested right after signing up, and a welcome email delivers what you promised without you having to remember.

These timings are illustrative starting points, not universal rules. The general workflow looks like this:

1. Choose a trigger, such as a subscriber joining a specific group.
2. Select the audience or signup source that should start the sequence.
3. Add the email steps and the delays between them.
4. Review timing and any conditions.
5. Test the workflow with your own address.
6. Activate it when ready.

Basic automations like a welcome email are a common starting point; some advanced triggers and options can depend on your MailerLite plan. To plan the emails and timing first, try the Email Automation Generator or the Welcome Email Generator.

Send relevant emails using segmentation

Not every subscriber needs every message. Sending something more relevant to a smaller audience is often better than sending everything to everyone. Three practical starting points:

Understand your first email marketing results

• Delivered: emails accepted by the receiving mail servers.
• Open rate: the share of delivered emails recorded as opened.
• Click-through rate: the share of recipients who clicked a link.
• Conversions: people who completed the action you care about, such as a purchase or booking. This usually happens on your website, not in the email.
• Unsubscribes: people who left your list after this email.
• Bounces: emails that could not be delivered.

Clicks and conversions are different: a click means someone visited your link; a conversion means they did what you hoped once they got there. Also note that privacy features in some email apps and technical limits can inflate or hide opens, so do not treat open rate as a perfect measure of engagement.

• Did the email achieve its objective?
• Did recipients click the intended link?
• Did the campaign produce the desired action?
• Did it attract unsubscribes or negative replies?
• What is one improvement worth testing next?

To put revenue and costs side by side, use the Email Marketing ROI Calculator. To project how your list might grow, use the Email List Growth Calculator.

Common beginner mistakes

• Sending to people who never gave permission.
• Skipping domain authentication when it is required for your sending address.
• Importing contacts without checking where they came from and whether they agreed.
• Sending without a test email and a mobile preview.
• Using misleading subject lines that the email does not deliver on.
• Adding too many competing calls to action.
• Building complicated automations before the basics work.
• Treating open rates as the final verdict.
• Sending the same message to every subscriber forever.
• Hiding the unsubscribe link or not honouring unsubscribe requests.

A practical 7-day getting-started plan

This is a flexible suggestion, not a deadline. If day 7 arrives and your email is not ready, send it when it is.

Frequently asked questions

Final checklist and next steps