relay.vhosting-it.com has no MX records.
Question and response
Question
dig relay.vhosting-it.com. MX
Answer
The response has no answer records.
Authority
vhosting-it.com. 1800 SOA daisy.ns.cloudflare.com. dns.cloudflare.com. 2397082462 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0