Access user email from ABAP environment in Cloud Steampunk

Hello SAP developers,

I am working in cloud-foundry environment and want to retrieve the email of the user in back-end using steampunk abap. Does anyone know how to access this internal-table Maintain Employees in abap?

The screen shot is from the Dashboard of my abap-environment instance in cloud-foundry.

SY-UNNAME is available however that will not help me as I need to get the email address. Surely there must be a table stored somewhere that this data can be accessed in the back-end?

It is possible to get this in the front-end using app-router. However if it could be accessed in abap steampunk code would be more ideal and secure for our requirements.

Thanks so much.