spf.smtp.cz DNS records

A IPv4 address
1h
spf.smtp.cz has no A records.
AAAA IPv6 address
1h
spf.smtp.cz has no AAAA records.
CNAME Canonical name
8m 44s
spf.smtp.cz has no CNAME records.
TXT Human readable text
1h
MX Mail server
1h
spf.smtp.cz has no MX records.
NS Authoritative DNS server
1h
spf.smtp.cz has no NS records.
NS records for this zone are defined at smtp.cz.
SOA Start of authority
1h
Zone apex
Start of authority
Email
Serial
2026022301
Refresh
3h
Retry
30m
Expire
14d
Negative cache TTL
1h

Other record types