mail.alinto.org has no CNAME records.
Question and response
Question
dig mail.alinto.org. NS
Answer
The response has no answer records.
Authority
alinto.org. 600 SOA ns1.rrpproxy.net. tech.rrpproxy.net. 2026021901 10800 3600 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0