Why Microsoft Outlook fails to connect my mailbox after migrated to Exchange?

Some anti-virus software with firewall enabled may intercept the Outlook traffic and even block the traffic. Below is the procedure to add exception for Outlook in Kaspersky Endpoint Security for reference.
  1. Open Kaspersky Endpoint Security and choice ‘Settings’.
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  3. Select ‘Anti-Virus protection’ and click ‘setting’ at the Exclusions and trusted applications.
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  5. At the Trusted Applications, click ‘Add’.
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  7. Type ‘outlook’ at the select application from the list.
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  9. Select ‘Do not scan network traffic’.
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  11. Click any remote ports and type 443. Click OK.
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  13. Click ‘Save‘ to save the setting.
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Multi-Factor Authentication

February 2024
February 2024

Mandatory for all staff accounts

May 2024
May 2024

Mandatory for all student accounts