'Greetings' in the Bible

Then the king sent an answer to Rehum the [Persian] commander, to Shimshai the scribe, and to the rest of their colleagues who live in Samaria and in the rest of the provinces west of the River: “Peace (Greetings). And now,

“Artaxerxes, king of kings, to Ezra the priest, the scribe of the Law of the God of heaven, perfect peace (greetings). And now