SOA
Start of Authority
Primary NS
Mailbox
admin.demo.s103.lon.krystal.io
Serial
2026092701
Refresh
3600
Retry
1800
Expire
1209600
Minimum TTL
86400
TXT
TXT Records
v=spf1 ip4:185.194.90.40 ip4:77.72.1.22 a mx include:relay.k.io include:_spf.google.com ~all
A