Email read and delivery receipts - how do I block these?

Is there a way to block email read and delivery receipts? Delivery of email to Cox server is sending a deliver/read receipt even if I am logged out of email on all devices and have not read/seen the email. I have disabled read and delivery request responses on PC and phone is off, but the delivery/read receipts are still sent even if email has not been received on a device and I am not logged into email. How can I block these delivery and read receipts from being sent by the cox server?