Postfix/DMARC ログ集計レポート 2026-03-20 16:00

Postfix 拒否ログ 上位理由

• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [178.16.53.5]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [178.16.54.171]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [80.87.206.253]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [91.92.243.133]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [163.43.128.179]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [59.106.220.50]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [91.92.242.60]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [27.102.115.141]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [59.106.208.216]: 1

DMARC 失敗送信元 上位

1. 過去7日間のDMARC失敗はありません。