SOA
Start of Authority
Primary NS
Mailbox
hostmaster.onebit.cz
Serial
2023032801
Refresh
43200
Retry
7200
Expire
604800
Minimum TTL
3600
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 include:spf.seznam.cz ?all
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=emailprofi.seznam.cz;
AAAA