For pointing the site:
- Add "A" record for your domain name
- Add CNAME record *.yourdomainname.ext pointing to your primary domain yourdomainname.ext
For email
- Add "MX" record pointing to your primary domain as in below image.
- for email to deliver properly, you need to add additional two records ...spf & DKIM records
- You can fnd apppriate entry details for these two records under your cpanel under "authentication"