Registro DMARC
v=spf1 include:_spf.freshmail.pl -all

Registro IPv4
host: s3-w.us-east-1.amazonaws.com
class: IN
ttl: 90
type: A
ip: 52.217.91.100

Registro IPv4
host: s3-w.us-east-1.amazonaws.com
class: IN
ttl: 90
type: A
ip: 3.5.29.168

Registro IPv4
host: s3-w.us-east-1.amazonaws.com
class: IN
ttl: 90
type: A
ip: 52.216.58.89

Registro IPv4
host: s3-w.us-east-1.amazonaws.com
class: IN
ttl: 90
type: A
ip: 52.216.171.147

Registro IPv4
host: s3-w.us-east-1.amazonaws.com
class: IN
ttl: 90
type: A
ip: 16.15.217.13

Registro IPv4
host: s3-w.us-east-1.amazonaws.com
class: IN
ttl: 90
type: A
ip: 3.5.30.235

Registro IPv4
host: s3-w.us-east-1.amazonaws.com
class: IN
ttl: 90
type: A
ip: 52.216.221.105

Registro IPv4
host: s3-w.us-east-1.amazonaws.com
class: IN
ttl: 90
type: A
ip: 3.5.7.153

host: image.mailnews.pl
class: IN
ttl: 3600
type: CNAME
target: image.mailnews.pl.s3.amazonaws.com

Servidores DNS Principal (mname) y Secundario (rname)
host: s3-w.us-east-1.amazonaws.com
class: IN
ttl: 14341
type: SOA
mname: ns-328.awsdns-41.com
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 293

Información TXT
host: s3-w.us-east-1.amazonaws.com
class: IN
ttl: 90
type: TXT
txt: 38361f7847dfc47d25ea018cc49d2d4b
entries: Array