Access Outlook email account using user name and password in ASP.Net

Dear Programmers,

How to set up Outlook email account

Since last question was read and save attachment from outlook which i was successful because of your help.

Now i have another issue to tell you, I am using this below code to access my inbox 

Outlook.Application Application = new Outlook.Application();
Outlook.Accounts accounts = Application.Session.Accounts;

But i want that the account must be set up with useremail and password not getting by for example user email = rakib@outlook.com and password = 123456. Another thing is my account is configured with active directory in that case i want to allow automatically whenever its use my credentials.

How can i do that?

Thanks again for your support