SOA
Start of Authority
Primary NS
Mailbox
hostmaster.mad-tree.com
Serial
2026070101
Refresh
3600
Retry
3600
Expire
1209600
Minimum TTL
86400
MX
Mail Exchangers
TXT
TXT Records
v=spf1 include:_spf.serwer.xpert.pl -all
v=DMARC1; p=reject; adkim=s; aspf=s;
A