_spf.sendnow.ph has no MX records.
Question and response
Question
dig _spf.sendnow.ph. MX
Answer
The response has no answer records.
Authority
sendnow.ph. 3600 SOA ns5.domains.ph. sysadmin.domains.ph. 2025123002 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0