MailerLite welcome email not sending: check entry before rebuilding

This is a research guide based on cited documentation. It is not a report of firsthand testing. Our editorial method

Start with one controlled subscriber

A missing welcome email does not identify the broken step. A person may never have entered the workflow, may be waiting inside it, or may have reached a send step without receiving the message. Record the address you control, subscription time, expected entry event, and actual activity before changing anything. Use test addresses only; do not replay a customer list to diagnose one failure.

This is a documentation-based diagnostic plan, not a report of a tested MailerLite account. Screens and available features may differ by plan. The worksheet provides blank expected-versus-observed rows.

Check the event the workflow actually expects

MailerLite documents that a form-triggered automation must be active when the form is submitted. A group trigger depends on joining the selected group; someone already in that group has not joined it again. Compare the test subscriber's event with the configured trigger before editing the email.

With double opt-in across several forms, MailerLite says only the automation linked to the form where confirmation happens is triggered. Its documentation suggests a group trigger for this situation. Confirm the desired grouping with one address before changing a production flow.

Observed state	Next check	Evidence to retain
No workflow activity	Active state and matching entry event	Timestamp and trigger configuration
Entered but waiting	Delay and condition steps	Current step and intended wait
Send recorded but inbox empty	Recipient address and mailbox folders	Send status; do not assume delivery
Import did not enter	Import choices and trigger rules	Import settings and one test record

Treat imports and re-entry as separate decisions

For an Updated field trigger, MailerLite documents an import option that controls whether imported subscribers start the workflow. Record that choice instead of assuming importing equals enrolling. Re-entry also has its own setting; enabling it changes who may receive the series again.

Our recommended acceptance cases are a new confirmed signup, an existing group member, a deliberately imported test subscriber, and a returning subscriber. Write the intended outcome before running each case. Change one setting at a time so the result remains interpretable.

Decide whether the repair worked

Keep the production list unchanged until the controlled case enters the intended workflow once and reaches the expected step. A provider's send record and receipt in your test mailbox answer different questions; retain both when available. If you need support, share redacted timestamps and the failing step through the provider's support channel, never a full subscriber export.

If the current product can meet the requirement, a repaired trigger is usually a smaller project than migration. Revisit the tool choice only when the documented feature or your observed result cannot support the workflow.

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