Exchange Online for Staff

Exchange Online includes a cloud-based email and calendaring service, hosted by Microsoft. The Outlook on the web lets you access your email, calendar, address book, and tasks on any computer through a web browser. You can also use a desktop email client or a mobile device to access your Office 365 email and calendar.

Features of Exchange Online

  • 100GB mailbox quota and unlimited archive mailbox storage space
  • Access to your HKUST email account through a web interface, a desktop client, or a mobile device
  • Advanced security to protect against spam, phish and malware emails, e.g.
  • Attach files or save email attachments directly in Outlook client from/to OneDrive for Business and SharePoint sites
  • A highly modernized Outlook on the web

Getting Started

Getting Help

For enquiries about the Exchange Online Service, please send email to the ITSC Service Desk (

Security Risk Assessment on Office 365 Cloud