SOA
Start of Authority
Primary NS
Mailbox
hostmaster.blacknight.com
Serial
1276410493
Refresh
14400
Retry
7200
Expire
2419200
Minimum TTL
3600
MX
Mail Exchangers
TXT
TXT Records
v=spf1 include:_spf.mailersend.net include:spf.protection.outlook.com -all
A