_spf2.vas-hosting.cz has no MX records.
Question and response
Question
dig _spf2.vas-hosting.cz. MX
Answer
The response has no answer records.
Authority
vas-hosting.cz. 3600 SOA ns.vas-hosting.cz. info.vas-hosting.cz. 2601071397 28800 600 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0