Registro DMARC
v=DMARC1;p=reject;rua=mailto:dkim@fudan.edu.cn

Registro IPv4
host: fudan.edu.cn
class: IN
ttl: 600
type: A
ip: 202.120.224.81

Servidores DNS Principal (mname) y Secundario (rname)
host: fudan.edu.cn
class: IN
ttl: 3600
type: SOA
mname: ns.fudan.edu.cn
rname: root.ns.fudan.edu.cn
serial: 2000003309
refresh: 18000
retry: 14400
expire: 3600000
minimum-ttl: 86400

Servidor de Correo
host: fudan.edu.cn
class: IN
ttl: 90
type: MX
pri: 10
target: mailrelay2.fudan.edu.cn

Servidor de Correo
host: fudan.edu.cn
class: IN
ttl: 90
type: MX
pri: 10
target: mailrelay1.fudan.edu.cn

Servidor de Correo
host: fudan.edu.cn
class: IN
ttl: 90
type: MX
pri: 1
target: mx-fudan-edu-cn.icoremail.net

Información TXT
host: fudan.edu.cn
class: IN
ttl: 600
type: TXT
txt: v=spf1 ip4:202.120.224.0/24 ip4:61.129.42.0/24 ip4:202.120.241.1/29 ip4:202.120.242.1/29 ip4:202.120.243.1/29 ip4:202.120.244.1/29 ip6:2001:da8:8001::/48 include:spf.icoremail.net ~all
entries: Array

Registro IPv6
host: fudan.edu.cn
class: IN
ttl: 600
type: AAAA
ipv6: 2001:da8:8001:2::81