epacketEMS is a class of mail with tracking. How is it unrelated?
The USPS makes a profit on epacket shipments [0][1], but loses money on UPU inbound shipments. The two aren't directly related.
[0] https://www.uspsoig.gov/sites/default/files/document-library..., page 6 table 2
[1] https://www.uspsoig.gov/sites/default/files/document-library..., footnote 17
epacketEMS is a class of mail with tracking. How is it unrelated?