For users currently using IMAP/POP3/Exchange to access email accounts in Outlook and manage all accounts under the same Outlook profile
Open “Control Panel” -> “User Accounts and Family Safety” -> “Mail”
Click “E-mail Accounts…”
In the “Accounts settings” dialog box, click “New”.
In the “Auto Account Setup” dialog box, select “E-Mail Account“, enter the following information and click “Next“:
Your Name: Your Name Email Address: YourUID@hku.hk Password: Your HKU Portal PIN Retype password: Your HKU Portal PIN 
In the “Windows Security” dialog box, enter the following information and click “OK”.
User Name: YourUID@hku.hk Password: Your HKU Portal PIN 
Outlook will automatically search the correct settings for you. After the configuration is completed successfully, uncheck “Set up outlook Mobile on my phone” and click “Finish” button to complete the setup. (Note: Office 2016 does not have this checkbox.)
Open the Outlook program.
In the “Windows Security” dialog box, enter the following information and click “OK”.
User Name: YourUID@hku.hk Password: Your HKU Portal PIN 
Outlook will connect to the Exchange Server and synchronize your emails.
All mailboxes will be managed under a single profile.