_spf.kirei.se has no MX records.
Question and response
Question
dig _spf.kirei.se. MX
Answer
The response has no answer records.
Authority
kirei.se. 1800 SOA ns.kirei.se. hostmaster.kirei.se. 1771926164 14400 3600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0