Hello Bruna!
Your key is valid
MailPoet Sending Service is active
A test email was sent to ……@.com
The test email is coming after activating the key, also the test preview email is being sent , but when I turn on the welcome email automation everything remains on schedule.
I have 3 emails scheduled but no email is sent, when the time of sending reaches, it reschedules them again 2 hour later and so on.
As settings we use now : WordPress built-in cron with Mailpoet sending service.