mailrelay.porschenet.hu has no MX records.
Question and response
Question
dig mailrelay.porschenet.hu. MX
Answer
The response has no answer records.
Authority
porschenet.hu. 3600 SOA nsa1.isp.hu. dnsadmin.isp.hu. 2005050901 43200 10400 1814400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0