Apex domains cannot have CNAME records.
Microsoft
Domain verification
MS=ms40895353
v=spf2.0/pra ip4:78.109.85.144 ip4:78.109.88.161 ip4:78.109.84.55 ip4:193.189.143.17 ip4:78.109.81.1 ip4:78.109.80.250 ip4:78.109.81.197 ip4:193.189.143.18 ip4:88.191.60.225 ip4:78.109.84.30 ip4:78.109.81.228 include:aspmx.googlemail.com ~all
Zone apex
Start of authority
Email
Serial
2005010936
Refresh
6h
Retry
1h
Expire
7d
Negative cache TTL
1d