SOA
Start of Authority
Primary NS
Mailbox
admin.demo.s104.lon.krystal.io
Serial
2026082401
Refresh
3600
Retry
1800
Expire
1209600
Minimum TTL
86400
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
protonmail-verification=631a2f63b3d5f71f14c93a3182cbbb7d529ee26c
v=spf1 ip4:185.194.90.41 a mx ip4:77.72.1.24 include:relay.k.io include:_spf.protonmail.ch ~all
A