It's also not clear that the server must forward all the delivery receipts before it forwards the later replies. Could it just eat them all? EDIT: after a qui

It's also not clear that the server must forward all the delivery receipts before it forwards the later replies. Could it just eat them all? EDIT: after a quick look at the spec¹, it seems that it supports out-of-order messages, meaning the server could selectively eat receipts. [1] https://whispersystems.org/docs/specifications/doubleratchet/#deletion-of-skipped-message-keys https://whispersystems.org/docs/specifications/doubleratchet...