smtp.accessmylan.com has no CNAME records.
Question and response
Question
dig smtp.accessmylan.com. NS
Answer
The response has no answer records.
Authority
accessmylan.com. 41 SOA a1-117.akam.net. hostmaster.accessmylan.com. 2025040751 3600 600 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0