Cannot recieve Warp PIN for Teams registration to my cloudflare hosted domain email

I have a few email addresses associated with the domain hosted on Cloudflare. For some reason, I receive emails to this mailbox if they were sent by any other domain or outside of Cloudflare. The email address is forwarded to my Gmail box.

I am trying to enable Teams for Warp, but when I request a pin to that domain, it never arrives in the mailbox. If I try any other email domain, the pin is delivered. However, I would like to limit this functionality to get the pin to only the domain you host for me.

I suspect the source email address from the Cloudflare pin is the problem, but I’m not sure how I can resolve that issue.

Any assistance with this issue would be appreciated. I am unable to determine what is causing the problem.