How to Migrate MailPoet Database Tables
However, if you are also looking to migrate your emails, forms, and statistics, you will want to perform a database migration.
To do that you will want to export all tables that begin with *_mailpoet and import them to your new website. Your host support team may be able to help you with this.
Once that's done, if you have a premium key, make sure to change the domain associated with your key.
Please note that assistance with database migrations are not covered under our support policy.