Hello @jerry huang
It seems that you're facing an issue when trying to log into your account, receiving error code 530032 while attempting to access the Office 365 Exchange Online app.
The error you are getting 530032 suggests that BlockedByConditionalAccessOnSecurityPolicy - The tenant admin has configured a security policy that blocks this request. Check the security policies that are defined on the tenant level to determine if your request meets the policy requirements.
This issue is likely caused by a conditional access policy that is blocking your user account. To resolve this and regain access to the app, you should contact your IT administrator and ask to be excluded from the conditional access policy that's affecting your account. After excluding from that policy, you can be able to login and access your Office 365 Exchange Online app.
For Additional information refer this document: https://learn.microsoft.com/en-us/entra/identity-platform/reference-error-codes
Let us know if you any further queries. Happy to assist you further.