arceus.itu.ch has no MX records.
Question and response
Question
dig arceus.itu.ch. MX
Answer
The response has no answer records.
Authority
itu.ch. 2700 SOA ns.itu.ch. hostmaster.itu.ch. 2026022301 1800 900 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0