BUG: Email is "not accessible" for [email protected] user when a new user signs up

[Comoque1]

Describe the bug
When a new user registers the platform, notification email is sent to GA, GSA, when they have the preference enabled.
The email should contain the registered user email.
Sometimes it is displayed as 'not accessible'

To Reproduce
Steps to reproduce the behavior:

1. no clear steps to reproduce

Expected behavior
Registered user email is visible.

Additional context

Strongly suspect this is a race condition, whereby the notifications are triggered before the authorization policy is propagated on new user creation.