Registro DMARC
v=DMARC1; p=reject; pct=100; rua=mailto:re+luwagqlrm9b@dmarc.postmarkapp.com; sp=none; aspf=r;

Registro IPv4
host: springerprofessional.de
class: IN
ttl: 90
type: A
ip: 151.101.132.95

Servidores DNS Principal (mname) y Secundario (rname)
host: springerprofessional.de
class: IN
ttl: 3451
type: SOA
mname: pdns1.ultradns.net
rname: hostmaster.springernature.com
serial: 2021041865
refresh: 86400
retry: 86400
expire: 86400
minimum-ttl: 86400

Servidor de Correo
host: springerprofessional.de
class: IN
ttl: 3450
type: MX
pri: 10
target: mxb-002c5801.gslb.pphosted.com

Servidor de Correo
host: springerprofessional.de
class: IN
ttl: 3450
type: MX
pri: 10
target: mxa-002c5801.gslb.pphosted.com

Información TXT
host: springerprofessional.de
class: IN
ttl: 3450
type: TXT
txt: google-site-verification=vKuPbQTI-3gTFP1D4d8STP7K3T4GriZ8GED8QqsPPiU
entries: Array

Información TXT
host: springerprofessional.de
class: IN
ttl: 3450
type: TXT
txt: MS=ms94430714
entries: Array

Información TXT
host: springerprofessional.de
class: IN
ttl: 3450
type: TXT
txt: Hello GlobalSign CEOS1602043687
entries: Array

Información TXT
host: springerprofessional.de
class: IN
ttl: 3450
type: TXT
txt: v=spf1 ip4:195.128.10.18/32 ip4:195.128.10.15/32 ip4:66.159.232.113/32 ip4:66.159.234.15/32 include:spf.mandrillapp.com include:sparkpostmail.com include:spf-002c5801.pphosted.com -all
entries: Array