下面只是一个例子。 检查MX nslookup -sil -q=MX youtdomain.com 2>&1 清除exim4堆积 exiqgrep -z -i | xargs exim -Mrm 查看exim4日志 cat /var/log/exim4/mainlog FQDN: server1.anydomain.com nano /etc/mailname server1.anydomain.com nano /etc/hostname server1 hostname -F /etc/hostname nano /etc/hosts 127.0.0.1 localhost.localdomain localhost wan ip server1.anydomain.com server dpkg-reconfigure exim4-config