Postfix/DMARC ログ集計レポート 2025-11-28 12:00

Postfix 拒否ログ 上位理由

• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [213.209.157.209]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [213.209.157.93]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [158.94.208.15]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [213.209.157.147]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [91.92.241.105]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [158.94.208.34]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [178.16.52.137]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [178.16.54.77]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [185.169.4.192]: 1

DMARC 失敗送信元 上位

1. 183.181.88.16：1