tra05.bubblesmail.net has no MX records.
Question and response
Question
dig tra05.bubblesmail.net. MX
Answer
The response has no answer records.
Authority
bubblesmail.net. 600 SOA ns49.domaincontrol.com. dns.jomax.net. 2023091900 28800 7200 604800 600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0