SOA
Start of Authority
Primary NS
Mailbox
azuredns-hostmaster.microsoft.com
Serial
1
Refresh
3600
Retry
300
Expire
2419200
Minimum TTL
300
NS
Nameservers
TXT
TXT Records
3t9kkkm8nfic09tk4c1qr2j9kd
include:sendgrid.net
MS=ms72521241
C7NPO2QEDO931BPI1HSS17HJSH
v=spf1 ip4:62.232.56.58 include:spf.protection.outlook.com -all