doe3699246.lnk.telstra.net has no MX records.
Question and response
Question
dig doe3699246.lnk.telstra.net. MX
Answer
The response has no answer records.
Authority
lnk.telstra.net. 6400 SOA dns0.telstra.net. hostmaster.telstra.net. 2021366235 10800 3600 604800 6400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0