x402.orthogonal.com/agentmail/v0/inboxes/x402test1786260932@agentmail.to/messages/send

탐색에서 사용할 수 있는 결제 조건을 받지 못했습니다.

status 404, expected 402

Fiangshi fails closed: without a parsed 402 it gives no verdict, and a paid check would answer REVIEW.