Hi rixdisx,
Thanks for contributing to our forum. It is not currently possible to print Media Mail shipping labels through our site without selecting either Delivery Confirmation or Signature Options, so sticking with the Delivery Confirmation that is checked by default is the most cost effective option.
This requirement is set by our shipping label provider and I do not currently expect it to be removed in the near future, but we will make note of your desire to print Media Mail labels without using any Special Services as a suggestion for future consideration.
If you need any further assistance with your account, please feel free to contact our Customer Support team by mousing over the “Help” tab and selecting the “File Support Case” option.
-Mike