The way you communicate is about to change without having to change your tools or email address. Send, sign, track and manage your email from your inbox (Gmail, O365, Outlook, etc…). All messages sent with DeliverySlip are encrypted with the same technology used in online banking, ensuring your information is safe and only viewed by the people you want to see it. Our Patented In-App Delivery Slip is an advanced message tracking and control panel for senders and recipients. It enables users to track and prove when an email is received, read, replied to, or forwarded. Messages can be recalled, even after being read, and senders are able to control whether messages can be forwarded.