Postfix/DMARC ログ集計レポート 2026-07-18 00:00

Postfix 拒否ログ上位理由

450 4.7.1 Client host rejected: cannot find your reverse hostname, [64.89.161.73]: 1
450 4.7.1 Client host rejected: cannot find your reverse hostname, [77.83.39.8]: 1
450 4.7.1 Client host rejected: cannot find your reverse hostname, [91.92.240.224]: 1
554 5.7.1 <yxt@outlook.fr>: Relay access denied: 1
450 4.7.1 Client host rejected: cannot find your reverse hostname, [153.127.217.137]: 1
450 4.7.1 Client host rejected: cannot find your reverse hostname, [102.220.160.218]: 1
450 4.7.1 Client host rejected: cannot find your reverse hostname, [91.92.242.114]: 1
450 4.7.1 Client host rejected: cannot find your reverse hostname, [141.98.9.65]: 1
450 4.7.1 Client host rejected: cannot find your reverse hostname, [158.94.211.179]: 1
450 4.7.1 Client host rejected: cannot find your reverse hostname, [192.253.248.56]: 1
450 4.7.1 Client host rejected: cannot find your reverse hostname, [158.94.211.145]: 1
450 4.7.1 Client host rejected: cannot find your reverse hostname, [158.94.211.202]: 1
450 4.7.1 Client host rejected: cannot find your reverse hostname, [77.83.39.169]: 1
450 4.7.1 Client host rejected: cannot find your reverse hostname, [77.83.39.149]: 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