Registro IPv4
host: srs.uc.edu
class: IN
ttl: 28800
type: A
ip: 129.137.6.99

Servidor de Correo
host: srs.uc.edu
class: IN
ttl: 28800
type: MX
pri: 10
target: mxb.mailgun.org

Servidor de Correo
host: srs.uc.edu
class: IN
ttl: 28800
type: MX
pri: 10
target: mxa.mailgun.org

Información TXT
host: srs.uc.edu
class: IN
ttl: 28800
type: TXT
txt: v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:mailgun.org ~all
entries: Array