vcsk.hu has no MX records.
Question and response
Question
dig vcsk.hu. MX
Answer
The response has no answer records.
Authority
vcsk.hu. 3600 SOA ns.vcsk.hu. postmaster.mail.vcsk.hu. 2015112605 3600 7200 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0