Postfix/DMARC ログ集計レポート 2026-03-13 16:00

Postfix 拒否ログ 上位理由

• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [185.169.4.212]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [91.92.240.214]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [158.94.211.220]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [153.127.192.209]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [185.169.4.32]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [185.169.4.238]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [158.94.211.83]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [141.98.9.61]: 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. 183.181.88.16：1