_spf.g1i.one has no MX records.
Question and response
Question
dig _spf.g1i.one. MX
Answer
The response has no answer records.
Authority
g1i.one. 300 SOA auth.g1-dns.one. hostmaster.one.com. 2026022301 1800 900 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0