SOA
Start of Authority
Primary NS
Mailbox
sbt.qth.com
Serial
2026081101
Refresh
14400
Retry
7200
Expire
1209600
Minimum TTL
3600
TXT
TXT Records
protonmail-verification=acfdfa36d01176f9e0da65e9c848e8c49a7fcc44
v=spf1 include:_spf.protonmail.ch mx ~all
A