Some hosts will require that you also install an SMTP plugin and use a 3rd party service like Sendgrid or Mailgun to authenticate and send the messages. If you

Some hosts will require that you also install an SMTP plugin and use a 3rd party service like Sendgrid or Mailgun to authenticate and send the messages. If you have a professional web developer to help, this is usually fine, but if you don't, then this step will often times stop people in their tracks.