Want to have the postman collect a signature when your package is delivered?  You can  easily ask the USPS to ensure that someone signs for your package when it's delivered by clicking the "Request signature" check box underneath the customer's address before you purchase a shipping label. 

Once you check the "Request signature" box, Sonlet will automatically retrieve new quotes from the USPS for your shipping label.  Simply click on the correct postage type to create the label, attach it to your package, and provide to the mailman or post office.  The post office will then ensure that someone signs for the package at the address where it is delivered.