using active directory, NTLM and then accessing the users exchange unread emails

I am building an intranet site and i want to display the users email(not the complete email), but the subject, from, date and time.

However, the first step would be connecting to the exchange server using the NTLM credentials, which are the same, however, i dont want the user t开发者_JAVA百科o have to type their password to connect to the email.

is this possible and how?

any resources/examples anything to help me get started thanks