Setup Email in Centos Web Panel

I'm looking for a freelancer to help me set up email in Centos Web Panel. I have an existing email account that I need help setting up for sending and receiving emails without marked as spam, my domain uses CloudFlare DNS and it's need to add:
- SPF (TXT) DNS record
- DKIM (TXT) DNS records
- DMARC (TXT) DNS records

I need a person to help me how to add these records.