SOA
Start of Authority
Primary NS
Mailbox
hostmaster.servidoresdns.net
Serial
2017022273
Refresh
21600
Retry
3600
Expire
2419200
Minimum TTL
300
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 include:_spf.serviciodecorreo.es ip4:82.223.190.0/27 ip4:188.164.197.46 ~all