dns3.nsdns.info has no MX records.
Question and response
Question
dig dns3.nsdns.info. MX
Answer
The response has no answer records.
Authority
nsdns.info. 28800 SOA ns1.domaindiscount24.net. tech.key-systems.net. 2024082900 10800 3600 604800 28800
Additional
. 0 OPT ; payload 1400, xrcode 0, version 0, flags 0