_spf.jupiter.salesmanago.pl has no MX records.
Question and response
Question
dig _spf.jupiter.salesmanago.pl. MX
Answer
The response has no answer records.
Authority
jupiter.salesmanago.pl. 38400 SOA ns1.3s.pl. hostmaster.3s.pl. 2026021400 10800 3600 604800 38400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0