How to access Apple email

Okay, can you try to turn off iCloud private relay to see if that fixes the issue?

1. Go to Settings  > [your name] > iCloud > Private Relay, then tap Private Relay.
2. Do one of the following:

• Turn off iCloud Private Relay temporarily: Tap Turn Off Until Tomorrow.
  • Within 24 hours, iCloud Private Relay will turn back on automatically. If you want it to resume sooner, follow the instructions for turning it on at any time.
  • Turn off iCloud Private Relay completely: Tap Turn Off Private Relay.

Try and send the verification code via the private relay. There is a good chance that the email is forwarded to the email address that you use with your Apple ID