X-Yandex-Spam: 4 수신 된 메일 원본을 분석 하면 스팸 지수가 4로 나오게 됩니다. https://github.com/yandex/NwSMTP/blob/master/etc/nwsmtp.conf ## If set to '1', the server will perform spam filtering. The result of the spam check is encoded in the form of a ## X-Yandex-Spam header field that NwSMTP will append to the resulting message. The semantics of its values is as follows: ## X-Yandex-Spam: 0 - the message was found t..