Hi,
we just downloaded the postman plugin and it resolved our issue with not being able to send emails. Thank you very much for this. But when you are in settings right below the row with Start the wizard, Actions and Troubleshooting there is error message saying : Postman is not configured and is mimicking out-of-the-box WordPress email delivery. Do you have any idea what it means? We are happy that we can send out emails, just a little bit worried this is only a temporary solution. I am thankful for any advice.