If you are having difficulty logging into Office 365 email please attempt the troubleshooting steps below.
Step 1 - Make sure you are trying to access to correct URL: https://outlook.office365.com
Step 2 - Make sure you are using the correct email domain in the username field. The HU domain names are listed below.
Step 3 - Clear you browser cache by following the instruction found at here.
Step 4 - Reset your password by following the instructions found here.
Step 5 - If you continue to have problems please open a support ticket here.