spf2.enginemailer.org has no CNAME records.
Question and response
Question
dig spf2.enginemailer.org. NS
Answer
The response has no answer records.
Authority
enginemailer.org. 1826 SOA dns102.a.register.com. root.register.com. 2016120973 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0