SOA
Start of Authority
Primary NS
Mailbox
admin.web4u.cz
Serial
2024051500
Refresh
14400
Retry
3600
Expire
1209600
Minimum TTL
14400
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 a mx ip4:193.19.177.116/32 ip4:81.91.92.47/32 ip4:81.91.92.48/32 ip4:92.62.233.210/32 ip4:81.91.92.31/32 ip4:81.91.87.10/32 include:_spf.web4u.cz ip6:2001:1568:f::841 ~all
A