What's going on: The e-mail server receives your usual e-mail password via secure connection, then signals this web server if your identity is verified. Secondly, this web server checks whether the given e-mail address (not your password) is listed in the database for access to this web site.
Never share your e-mail password.
Only one e-mail address should work for an individual's login, either MEMO (firstname or email@example.com) or student (firstname.lastname@example.org) depending on how the account was assigned. You may conveniently enter the name portion of the address alone, stopping before the "@" symbol, for GCC addresses.