Registro IPv4
host: is.savs.cz
class: IN
ttl: 3600
type: A
ip: 212.4.158.25

Información TXT
host: is.savs.cz
class: IN
ttl: 3600
type: TXT
txt: v=spf1 a ip4:212.4.158.25 include:spf.protection.outlook.com -all
entries: Array