SOA
Start of Authority
Primary NS
Mailbox
hostmaster.checkdomain.de
Serial
2024012203
Refresh
40000
Retry
7200
Expire
604800
Minimum TTL
300
MX
Mail Exchangers
TXT
TXT Records
v=spf1 include:secure-mailgate.com include:spf.protection.outlook.com -all
MS=ms79900112.msv1.invalid
A