Email Servers

In addition to Outlook on the web (https://outlook.com/owa/ust.hk for staff and https://o365.ust.hk for student) , the following email applications are recommended:

  1. Microsoft Outlook for PC or Microsoft Outlook for Mac (Get from your Office 365 account)
  2. Native Mail app for iOS
  3. Microsoft Outlook for iPhone / iPad in the Apple Store
  4. Microsoft Outlook for Android in the Play Store

Users are recommended to use the Microsoft 365 (or Exchange) connection when configuring email applications. For mobile devices, users are recommended to select Microsoft 365 (Microsoft Exchange or Corporate) when adding your email account. Please also refer to Set up Office apps and email on a mobile device for more information.

The following table summarizes the IMAP/SMTP/POP server settings in case you have special needs:

  Staff Students
@Connect connection
(SMTP)		 N/A
  • SMTP
    Server: smtp.office365.com
    Port: 587
    Connection Security: STARTTLS
    Authentication Method: OAuth2
Exchange Online
(Staff/Project)
  • SMTP 
    Server: smtp.office365.com
    Port: 587
    Connection Security: STARTTLS
    Authentication Method: OAuth2
 N/A
Exchange 2019 Server
(Project)
  • Setup Outlook
  • IMAP
    Server: cas2013.exchange.ust.hk
    Port: 993
    Connection Security: SSL/TLS
  • SMTP
    Server: smtp.ust.hk
    Port: 587
    Connection Security: STARTTLS
    Authentication is required,
    For registered users only.
  • POP
    Server: cas2013.exchange.ust.hk
    Port: 995
    Connection Security: SSL/TLS
 N/A