cn域名绑定企业邮箱

; DNS配置文件（例如：named.conf）
zone "example.com" IN {
    type master;
    file "example.com.zone";
};

zone "1.168.192.in-addr.arpa" IN {
    type master;
    file "1.168.192.zone";
};

; example.com.zone文件
$TTL 86400
@       IN      SOA     ns1.example.com. admin.example.com. (
                        2023010101 ; Serial
                        3600      ; Refresh
                        1800      ; Retry
                        604800    ; Expire
                        86400     ; TTL
                )
        IN      NS      ns1.example.com.
        IN      NS      ns2.example.com.
        IN      A       192.168.1.1
mail    IN      A       192.168.1.1

; 1.168.192.zone文件
$TTL 86400
1       IN      PTR     mail.example.com.