For your provider

Microsoft 365

Microsoft's SPF example for a custom domain in Microsoft 365 is v=spf1 include:spf.protection.outlook.com -all. DKIM public keys are CNAME records. The CNAME values printed in the article are examples. The ones you publish are the ones the Defender portal shows for the domain.

v=spf1 include:spf.protection.outlook.com -all

Microsoft's SPF page shows that include next to sample ip4 mechanisms, and says the syntax follows RFC 7208. Do not copy a CNAME from the DKIM article. The article says those values are for illustration only.