spf.allomone.com has no MX records.
Question and response
Question
dig spf.allomone.com. MX
Answer
The response has no answer records.
Authority
allomone.com. 1000 SOA ns1.hukot.cz. hukot.hukot.cz. 1754989511 28800 7200 604800 1000
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0