SOA
Start of Authority
Primary NS
Mailbox
postmaster.your-server.de
Serial
2025121200
Refresh
86400
Retry
10800
Expire
3600000
Minimum TTL
3600
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
protonmail-verification=e4ced8ab30f31236c23265023594baaea24a9fdb
v=spf1 include:_spf.protonmail.ch ~all
v=spf1 +a +mx ?all