ns2.secar.cz has no MX records.
Question and response
Question
dig ns2.secar.cz. MX
Answer
The response has no answer records.
Authority
secar.cz. 300 SOA ns1.secar.cz. rama.secar.cz. 2026021200 1800 900 1209600 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0