445231.spf01.hubspotemail.net has no MX records.
Question and response
Question
dig 445231.spf01.hubspotemail.net. MX
Answer
The response has no answer records.
Authority
spf01.hubspotemail.net. 180 SOA ns10.digicertdns.com. dns.digicertdns.com. 2009010109 43200 3600 1209600 180
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0