How to import subscribers from other plugin/ service (Or WordPress) to Email Subscribers?
Step 1 : Install WordPress Importer plugin
Step 2 : Export subscribers list of any other plugin (or WordPress users) using WordPress Importer plugin
Step 3 : Make sure it has CSV format as specified above
Step 4 : Go to Email Subscribers -> Audience -> Import
Step 5 : Import the CSV file that you have
That’s it! You have moved your subscribers’ list to Email Subscribers.