_spf01.ibw.com.ni has no MX records.
Question and response
Question
dig _spf01.ibw.com.ni. MX
Answer
The response has no answer records.
Authority
ibw.com.ni. 300 SOA ns.ibw.com.ni. admin.ibw.com.ni. 2026021301 43200 900 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0