Zone apex
Start of authority
Email
Serial
1712602765
Refresh
1h
Retry
15m
Expire
7d
Negative cache TTL
1d
Question and response
Question
dig mx1.cbsmail.cz. SOA
Answer
The response has no answer records.
Authority
cbsmail.cz. 3600 SOA ns1.cbsn.cz. root.cbsn.cz. 1712602765 3600 900 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0