ENABLE_REVERSE_PROXY_EMAIL not working

my gitea is configured with REVERSE_PROXY, and i trying to use the email header.

[service]
ENABLE_REVERSE_PROXY_AUTHENTICATION = true
ENABLE_REVERSE_PROXY_EMAIL = true
ENABLE_REVERSE_PROXY_AUTO_REGISTRATION = true
ENABLE_REVERSE_PROXY_AUTHENTICATION_API = true

[security]
REVERSE_PROXY_AUTHENTICATION_EMAIL = X-WEBAUTH-EMAIL-GITEA, X-Webauth-Email-Gitea

I’m trying to run the following curl with X-Webauth-User:

curl -v -X 'GET' \
  'https://gitea-app/api/v1/repos/test/test2/commits' \
  -H 'X-Webauth-User: username' \
  -H 'accept: application/json'

and its working.

but when i try to use email its not working I’m getting 404.

curl -v -X 'GET' \
  'https://gitea-app/api/v1/repos/test/test2/commits' \
  -H 'X-Webauth-Email: name.lastname@test.io' \
  -H 'accept application/json'

or

curl -v -X 'GET' \
  'https://gitea-app/api/v1/repos/test/test2/commits' \
  -H 'X-Webauth-Email-Gitea: name.lastname@test.io' \
  -H 'accept application/json'

both of them returning 404.

what can be the issue? any idea?