Still it prompts for a password and fails after entering right pwd. From outside, OWA is working fine. Is there specific reason it fails. Please suggest since i am not a exchange expert
Please mark sure those prerequisites for Exchange on-premises are met: Exchange Server on-premises in a hybrid Office 365 environment. Also make sure the Outlook version is 2013 or later, and MAPI over HTTP enabled for your Exchange on-premises.
About Conditional Access for Exchange on-premises, you need use Intune Conditional access for Exchange on-premises
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