SOA
Start of Authority
Primary NS
Mailbox
tech.key-systems.net
Serial
2026021802
Refresh
10800
Retry
3600
Expire
604800
Minimum TTL
28800
MX
Mail Exchangers
TXT
TXT Records
v=spf1 ip4:80.152.231.111 include:spf.protection.outlook.com include:_spf.nol-is.de ~all
A