mx.njal.la has no CNAME records.
Question and response
Question
dig mx.njal.la. NS
Answer
The response has no answer records.
Authority
njal.la. 3600 SOA ns1.njal.la. you.can-get-no.info. 2602180946 21600 7200 1814400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0