Registro DMARC
v=DMARC1; p=none; rua=mailto:dmarc@swampscottlibrary.org

Registro IPv4
host: swampscottlibrary.org
class: IN
ttl: 5395
type: A
ip: 209.59.132.9

Servidores DNS Principal (mname) y Secundario (rname)
host: swampscottlibrary.org
class: IN
ttl: 5396
type: SOA
mname: NS35.WORLDNIC.COM
rname: namehost.WORLDNIC.COM
serial: 124062013
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600