SOA
Start of Authority
Primary NS
Mailbox
hostmaster.heeres.org
Serial
2026070402
Refresh
10800
Retry
3600
Expire
1209600
Minimum TTL
3600
MX
Mail Exchangers
TXT
TXT Records
MS=ms74040592
v=spf1 include:heeres.nl include:spf.eu.signature365.net include:_spf.denkis.email ~all
duo_sso_verification=kNe388ND6mJGV1wKL62HfhTTJN0llCo69zx42WmGc6BUu3UcElY3gr0LDTqcj1aP
A