SOA
Start of Authority
Primary NS
Mailbox
hostmaster.istservices.com
Serial
2026100100
Refresh
3600
Retry
1800
Expire
1209600
Minimum TTL
86400
MX
Mail Exchangers
TXT
TXT Records
MS=ms17353596
v=spf1 +a +mx +ip4:162.241.158.141 include:spf.protection.outlook.com -all
A