Sign up emails


I am using Membership Lite for paypal payments.

The user sign up process is receiving a blank email with no details in it.
Also, no emails are sent to confirm payment (other than paypal) and to offer next steps.
Lastly, when returning from PayPal the new user is not logged in and i cant see a way to direct them to a specific page on return.

Please advise if these features are available and how to control them.