nx3.named.se has no MX records.
Question and response
Question
dig nx3.named.se. MX
Answer
The response has no answer records.
Authority
named.se. 1800 SOA ns.kirei.se. hostmaster.kirei.se. 1772014372 14400 3600 604800 1800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0