Using The Finger software to find out the owner of an email address? Sometimes this feature is deactivated by the internet provider your using. Does anyone know how to re-activate it?

Using The Finger software to find out the owner of an email address? Sometimes this feature is deactivated by the internet provider your using. Does anyone know how to re-activate it?
You would have to direct that concern directly to your ISP as they appear to have that service disabled; probably for reasons of privacy and security.

What makes you think any software can pinpoint the owner of an e-mail address?