Hi all,

I have built a project and now I wanna connect to an exchange server.Let me describe the scenario

When a user wants to log in ,he/she declares his/hers commonly used outlook service address.And gives me username and password.

Then i query the given exchange server with the user's username & pwd just like a simple authentication.I want to learn if the given username&password is valid for the given exchange server.

How can i achive this goal,

Thanks for your help

Gökhan 

There you go: http://alpascual.com/blog/al/archive/2008/04/23/ntm-how-to-send-email-using-exchange-in-asp-net.aspx