Postfix/DMARC ログ集計レポート 2026-03-27 16:00

Postfix 拒否ログ 上位理由

• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [178.16.54.219]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [133.125.93.5]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [91.92.243.54]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [157.66.219.211]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [141.98.9.84]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [156.251.65.197]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [158.94.209.116]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [153.127.219.178]: 1
• 450 4.7.1 Client host rejected: cannot find your reverse hostname, [141.98.9.64]: 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