Before you attempt to upload your push certificate or send it to firstname.lastname@example.org to upload, double check these things:
- Your push certificate must be in .p12 or .PEM format.
- Development certificates go to the sandbox namespace and production certificates go to the production namespace
- The push certificate bundle id must match that of the namespace you plan to upload it to
- The push certificate should not contain multiple certificates (certificates containing multiple certificates cannot be uploaded)