MailerLite

MailerLite for an email course: what to check before you commit

Last reviewed 18 September 2026

Features and pricing change, and this page does not track them. Everything below is written as what to check and where to check it, rather than as what is true of a product today. Read the date above, then answer the questions in the product itself.

MailerLite: https://www.mailerlite.com

Running a five-day course in MailerLite turns on what the workflow waits for and which group it watches, because the trigger is also the door: whatever writes an address into that group starts the course, confirmed or not. Check the trigger, the confirmation setting on every door, the last step of the workflow, and what an unsubscribe reaches.

Somebody asking this usually has a list and a few campaigns already, and wants to know whether a course means a new tool or only a new workflow. Usually it is a new workflow. What decides it is the trigger, the confirmation setting and the last step, and all three are answerable in an afternoon.

What a workflow waits for, and which group it watches

An automation platform starts a sequence from an event rather than from a date: somebody joined a group, completed a form, clicked a link, reached an anniversary. The event is the trigger, and the trigger is also the door. Whatever is able to put an address into the group a workflow watches is able to start the course, an import and an API call included.

So the first question in MailerLite is which group the course workflow watches, and what else writes to that group. If a shop integration files customers there, a purchase starts the course. If an old form still points at it, a page you forgot about still enrols people. That is the mechanism working rather than a defect, and it only bites where nobody drew the map.

The second question is what the first step waits for, and what each later delay is counted from. A workflow that waits a day after the previous step counts from the moment that step actually went out, so a queue that ran late once drags the rest of the week behind it, and a confirmation at twenty to midnight puts the remaining lessons near midnight.

Where confirmation is switched on, and where it is skipped

Confirmed opt-in is offered by everything in this category, so the useful question is never whether it exists. It is which paths go round it. Find the level the setting sits at — the account, the group, or the individual form — because the level decides how many doors one switch covers.

Then walk the doors one at a time with an address you own: the hosted form, an embedded form on your own site, a spreadsheet import, an address typed in by hand, an API call, and whatever an integration pushes in. A service can ask for confirmation on its own form and take an unconfirmed address through the other five, and the other five are where a list quietly goes bad.

Ask it in the other direction as well. When somebody unsubscribes, what stops: this workflow, this group, or everything the account would send them? An unsubscribe that belongs to a workflow rather than to a person is how somebody who left on Tuesday hears from you on Wednesday, and that message is reported rather than unsubscribed from.

The last step, and the morning after it

A course is finite, which makes the end of a workflow a design decision rather than an edge case. Something is configured there already: the workflow stops, or it files the reader into another group, or it starts a second workflow. Whatever it is, somebody chose it and it was probably not you.

The reader has just finished five days of something, which is close to the best moment they will give you all year, and an unchosen silence spends it on nothing. One note saying the course is over is a fair answer. So is a door into something else. So, deliberately chosen, is silence.

The same screen is where to ask what an edit does to the people already inside. Fix a broken link on day three this afternoon, then find out whether a reader sitting on day two receives the fixed version or the one they entered on. Both behaviours are common and both surprise people the first time.

If you already use MailerLite, test these four things first

A list and a few campaigns already in place are a reason to stay rather than to shop. Two addresses at two different mailbox providers and two days of waiting answer more than any feature page, provided there is a real lesson behind the form rather than a message saying test.

Four tests, in the order that finds problems earliest:

  • Join today with one address and tomorrow with a second. The second should receive day one.
  • Import a one-row spreadsheet into the group the workflow watches, and see whether anything asks that address to confirm.
  • Submit the form a second time from an address already inside, and count what arrives over the following days.
  • Unsubscribe on day three with the mail client’s own button, then send a campaign to that group and see whether it lands.

What a settings screen will not say

Two things stay invisible from inside any account. The first is what happens when a mail provider accepts a message and then times out before saying so. Sent late is an inconvenience; sent twice is a complaint, and the shape that prevents it is a uniqueness rule held in a database rather than a line of code somebody remembered to write.

The second is what you leave with. Every tool exports addresses. The consent wording and the timestamps are harder, and the list of everyone who unsubscribed, bounced hard or complained is rarely beside the export. Ask for all three by name while the account is still open, because that third list is what stops a first send somewhere new from reaching everybody who already left.

What to check, and why each one matters

  1. What does the first step of the workflow wait for, and what is each later delay counted from?

    A delay counted from the previous step drifts: one late queue moves the rest of the week, and a confirmation near midnight puts every later lesson near midnight for that reader.

  2. What happens when somebody already inside the workflow is written into the trigger group again?

    People submit forms twice and integrations re-file records. Where a second entry is allowed, that reader receives a second run beside the first and nothing reports that it happened.

  3. What level does the confirmation setting sit at, and which doors into the trigger group go round it?

    The switch may cover a form, a group or the whole account. Anything it does not cover is a way for an unconfirmed address to reach day one, and consent is impossible to collect later.

  4. When somebody unsubscribes, what stops: this workflow, this group, or everything the account sends?

    An unsubscribe that belongs to a workflow leaves the campaigns running. The reader sees a link that visibly did not work and reports the next message rather than clicking it again.

  5. What is configured on the last step of the workflow, and what happens after it?

    Ending, filing the reader into another group, or starting a second workflow are all set somewhere already. Whichever it is, it spends the one morning somebody has just finished something.

  6. If you fix day three this afternoon, does a reader sitting on day two get the fix or the old version?

    Some tools push an edit to everybody inside; some hold each person to the workflow as it stood when they entered. The answer decides how a correction is made, and neither behaviour is announced.

  7. Where in the account is the sending domain set, and what has to go into DNS before it works?

    Records to add means your own domain is possible; nothing to add means a shared one, which starts faster and keeps your complaint rate inside a figure only the vendor can see.

  8. What does an export carry: addresses, the consent wording and timestamps, and everyone who left?

    Addresses come out of anything. The consent record answers a complaint years later, and the suppression list is what stops a fresh reputation opening with a send to everybody who already left.

Common questions

Can I run a five-day email course in MailerLite?

A five-day course needs each person to receive a fixed sequence timed from the day they confirmed, which in an automation platform means a workflow triggered by an event rather than a campaign scheduled for a date. What to establish is what the first step waits for, what each later delay is counted from, and which group the workflow watches. Join with two addresses a day apart and check that the second one receives day one.

What starts a course workflow, and what else can start it by accident?

The trigger is usually membership of a group, so anything that writes to that group starts the course: the form, an import, an API call, a manual add, a shop or webinar integration filing records there. Draw the map of what writes to the trigger group before you publish the course, because every one of those is also a door onto your list.

Does MailerLite ask new subscribers to confirm?

Confirmed opt-in is offered across this category, so the question worth asking is which paths go round it rather than whether it exists. Find the level the setting sits at, then test each door with an address you own: the hosted form, an embedded form, an import, a manual add, the API and any integration. What the switch does not cover is what reaches day one unconfirmed.

What happens at the end of an email course workflow?

Something is configured on the last step already, and it is worth looking at rather than inheriting. The reader has just finished five days of something, which is the best attention you will get all year. One note saying the course is over is a fair answer, a door into something else is another, and silence is a third as long as somebody chose it.

A course in a tool of this shape is one workflow, one group and four settings, and the four settings are where every surprise lives. Draw the map of what writes to the trigger group before the first stranger joins, settle what the last step does, and find out what an unsubscribe reaches by unsubscribing. Everything else about the account you already know.

Sources

  1. Google's email sender guidelines
  2. Yahoo's sender best practices
  3. RFC 8058, one-click unsubscribe

Read next

The longer writing about email courses as a format, with no product named anywhere in it, is in the guides. What this site itself does is on the home page, and the rest of this set is on the comparison index .

Elsewhere on this site

The rest of this site comes at the same subject from other directions: guides on the format itself, a tool for one job each, a page for each kind of work, and what to check when choosing software.

Thinking of writing one of these?

5dayemail hosts a five-to-ten day email course: you write it once, and everyone who joins your list gets one email a day, in order, starting from the day they confirm.

Accounts are opened a few at a time rather than by signing up. Leave your address and you will be written to when the next ones open.

One message, when there is room. No course emails, no newsletter, and the address is not passed on. Ask and it is deleted; what is kept, and for how long, is in the privacy policy.