dnsit01.vodafone.nl has no MX records.
Question and response
Question
dig dnsit01.vodafone.nl. MX
Answer
The response has no answer records.
Authority
vodafone.nl. 900 SOA dnsit01.vodafone.nl. postmaster.vodafone.nl. 2010771418 1800 180 1209600 900
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0