spf.hostedexchange2010.fr has no CNAME records.
Question and response
Question
dig spf.hostedexchange2010.fr. NS
Answer
The response has no answer records.
Authority
hostedexchange2010.fr. 10800 SOA DNS03003.global-asp.net. hostmaster.global-asp.net. 2026021471 14000 3600 1209600 43200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0