Like in Pascal, this is how a handler passes data back to the message sender.
"The twenty-six messages are from the Voyagers in either direction of original message sender."
"Mr. Kim, how many universes away from us is that original message sender?"
They had to have that to work the message sender.
Every e-mail passes through several mixes so that no single mix can link message senders with recipients.
It is therefore made available to both parties in a UK movement, and not just to the message sender.
Benefits of this include message senders not needing to have precise knowledge of their receivers.
Instantly the idea flashed through his mind that this strangely maneuvering sky traveler must be the one belonging to the message senders.
Even if the message sender was royalty, as in the Deutschland incident of 1902, they continued to refuse access.
Then the message sender became more than just another foul-mouthed, annoying loose cannon on the service.