la has no MX records.
Question and response
Question
dig la. MX
Answer
The response has no answer records.
Authority
la. 3600 SOA ns0.nic.la. hostmaster.nic.la. 3000730917 900 1800 6048000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0