smtp21.cez.cz DNS records

A IPv4 address
10m
89.111.73.164
Telco Pro Services, a. s.
AS39791
Czechia
Prague, Prague
AAAA IPv6 address
1h
2a01:a040:2004:8005::1
Telco Pro Services, a. s.
AS39791
Czechia
Prague, Prague
CNAME Canonical name
1h
smtp21.cez.cz has no CNAME records.
TXT Human readable text
1h
SPF
Sender policy
v=spf1 ip4:89.111.73.164/31 ip4:89.111.77.164/31 include:_spf_aaaa.cez.cz -all
MX Mail server
1h
smtp21.cez.cz has no MX records.
NS Authoritative DNS server
1h
smtp21.cez.cz has no NS records.
NS records for this zone are defined at cez.cz.
NS records for cez.cz
SOA Start of authority
1h
Zone apex
Start of authority
Email
[email protected]
Serial
2026011502
Refresh
4h
Retry
1h
Expire
7d
Negative cache TTL
2h

Other record types

A AAAA AFSDB APL AXFR CAA CDNSKEY CDS CERT CNAME CSYNC DHCID DLV DNAME DNSKEY DS EUI48 EUI64 HINFO HIP HTTPS IPSECKEY IXFR KEY KX LOC MX NAPTR NS NSEC3 NSEC3PARAM NSEC NXT OPENPGPKEY OPT PTR RP RRSIG SIG SMIMEA SOA SPF SSHFP SVCB SRV TA TKEY TLSA TSIG TXT URI ZONEMD