Privatemail Email Routing from Cloudflare

We subscribe Privateemail email service for the domain from Namecheap. The email has SMTP configured in the application and user email send from the application. But emails are not delivering to users. Namecheap has investigated details and confirmed all settings are okay at their end servers.
Namecheap has recommended to check the settings for the email routing in our Cloudflare account (as they think it should be remote option, not local). FYI, We have added DKIM in the DNS management in Cloudflare

Seeking anyone support help who might have face this issue and can suggest how to fix it = emails routing and delivering to recipient are not blocking by Cloudflare - Much thanks for your support.

Welcome to the Cloudflare Community.

Email delivery isn’t really something that falls under the umbrella of Cloudflare services. It may still be worth reviewing the email troubleshooting guide #tutorial. If that does not help, the dmarcian forum will likely prove more fruitful for exploring the challenges of email delivery and authentication.