west.smtp.mx.exch122.serverdata.net has no CNAME records.
Question and response
Question
dig west.smtp.mx.exch122.serverdata.net. NS
Answer
The response has no answer records.
Authority
exch122.serverdata.net. 3427 SOA ns2.serverdata.net. hostmaster.intermedia.net. 2022011902 3600 1800 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0