Welcome to the Auth0 Community!
I recommend checking these two Knowledge Solutions, which explain the delay, with solutions, in emails:
Currently, the Auth0 provider is experiencing delays. The built-in email provider is not meant to be used in production, as it is for testing purposes only. For production implementation you have to implement your own email provider:
We do have documentation on how to setup your own email provider.
- Configure External SMTP Email Providers (Configure External SMTP Email Providers )
- Configure Custom External SMTP Email Providers (Configure Custom External SMTP Email Provider )
- Customize Email Handling (Customize Email Handling )
Let me know if you have any follow up questions.
Thanks,
Timotei