im has no MX records.
Question and response
Question
dig im. MX
Answer
The response has no answer records.
Authority
im. 3600 SOA pebbles.iom.com. dnsadmin.advsys.co.uk. 1773050402 1800 600 1048576 43200
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0