east.cox.net has no MX records.
Question and response
Question
dig east.cox.net. MX
Answer
The response has no answer records.
Authority
east.cox.net. 3600 SOA dukensumpov1z.services.cox.net. hostmaster.cox.net. 781212126 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0