mail sent to the user instead of override mail address (Onboarding Journey)

Summary:

Hi Oracle,

The Journey Onboarding is being tested on a test environment. A colleague assigned a new onboarding journey to a user for test.

Thereafter a mail is sent to the user home email address, the expectation was all the mails should be sent to the override mail address.

Also read the document https://docs.oracle.com/en/cloud/saas/human-resources/24b/faijh/how-you-enable-sending-journey-notifications-to-personal-email.html
Noticed that the same mail also received on override mail address.

Is there a way to receive all the mails to the override mail address?

It is annoying if users receive mail form test environments.