Include email with user access request

At our organization we manage security groups for workspace access, so when we try to add someone in we use email or internal ID. However, when a user requests access to our workspace, we just receive a name. So if we have multiple users with the same name (for example, John Smith) then we have to guess which user actually requested access. If possible, when a user requests access, we'd prefer either the ability to have the user account email which requested access or the ability to redirect them to request access to us directly.