SOA
Start of Authority
Primary NS
Mailbox
hostmaster.servidoresdns.net
Serial
2018022227
Refresh
21600
Retry
3600
Expire
2419200
Minimum TTL
60
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 include:_spf.serviciodecorreo.es +include:spf.ipzmarketing.com ~all
A