1.tail /var/log/maillog # 查看邮件日志内容,有关键内容:Our system has detected that this 550-5.7.1 message does not meet IPv6 sending guidelines regarding PTR records 550-5.7.1 and authentication. Please review 550-5.7.1 https://support.google.com/mail/?p=IPv6AuthError for more information 550 5.7.1 2.ip addr # 查看当前系统eth0 网卡有IPv6地址 3.vi /etc/sysctl.conf # 编辑文件,添加一行 net.ipv6.conf.eth0.disable_ipv6 = 1 4.sysctl -p # 让新设置生效
采用上面命令后,邮件还是有时候收不到提示有被 undelivered mail returned to sender 请教如何彻底解决这个问题
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