>Hi,
>
>This question is specific to ASP.NET or C#. If a user logs into a PC using his/her Active Directory user ID and password, can my ASP.NET page/app get/find the user name and his/her email? If yes, how?
>
>TIA

I have a small success where if I know the current user account (somedomain\username) I can find email and other values. And I can get the domain name (using C# code). But so far, the username returns the computer/server name and not the currently logged user name. I tried many ways to get the user name. Some of them are:

Environment.UserName;
System.Environment.UserName;
Environment.GetEnvironmentVariable("USERNAME");

But all above return the server name.

To get the domain name is simple:

Environment.UserDomainName;

The web.config has the following settings:

<authentication mode="Windows" /> 
<identity impersonate="false" />     // also tried "true", no difference

Where in the IIS or in the web site it could be set to use the server name as the current user name?

UPDATE. Finally, after a million of tries and various changes in the web.config, and reading tons of threads, I came across a solution. So, now I can get both the user name, domain name, and get the email address from the AD.
I just need to test it on a real user. If I could find one :)