Zone apex
Start of authority
Email
Serial
2026030903
Refresh
3h
Retry
1h
Expire
60d
Negative cache TTL
3h
Question and response
Question
dig smtp-out2.iol.cz. SOA
Answer
The response has no answer records.
Authority
iol.cz. 10800 SOA dns.iol.cz. hostmaster.iol.cz. 2026030903 10800 3600 5184000 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0