Please verify following steps before informing us:
1. Specify your complete e-mail id and password to login.
2. Check your password is correct or not.
3. Your account may not be activated properly or stopped.
4. Please verify that your browser supports COOKIES and that is set. IE5 and Netscape 4.7 above supports cookies. other wise you need to update your browser to use this
5. Please verify that you are not trying to login from Cache copy of Netmail. If so then refresh once and try. Other wise close the browser and try.
6. If you have checked the above things still unable to login then contact CIS with detail information.