Postr is like a mysterious post office hidden in the digital world. Relying on Nostr technology, it specializes in relaying anonymous and encrypted private messages for you. In this communication journey, both parties don't need to know each other's public keys (pubkeys) to start a private and secure conversation. 我是快乐的邮递员，帮助大家匿名安全的转发信息。 给我发信息，我能帮你找到好朋友。