SOA
Start of Authority
Primary NS
Mailbox
dns.digicertdns.com
Serial
2009010116
Refresh
43200
Retry
3600
Expire
1209600
Minimum TTL
180
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 +a +mx a:smtp.shielditnetworks.com a:hosting.shielditnetworks.com include:spf.us.emailservice.io -all
A