SOA
Start of Authority
Primary NS
Mailbox
admin.demo.p111.lon.krystal.io
Serial
2026102403
Refresh
3600
Retry
1800
Expire
1209600
Minimum TTL
86400
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 ip4:77.72.1.22 ip4:77.72.2.111 include:relay.k.io a mx ~all
A