In Jenner's sit-down interview with Diane Sawyer which aired in April, he said, Yes, for all intents and purposes, I am a woman, but clarified that he had not undergone gender reassignment at the time.
DHL Global Mail is essentially a product where the shipper sends all their mail, small parcels to DHL. DHL then split, and linehaul/freight the items to the respective countries. Via the regular DHL network. Then lodge them with the local postal agency. So delivery in Australia is normally via Aust Post.
DHL tracking numbers are normally 10 or 11 digits long and do not contain letters. USPS Tracking numbers are normally 20-22 digits long and do not contain letters. USPS Express Mail tracking numbers are normally 13 characters long, begin with two letters, and end with US.