VIP unable to add multi-factor authentication for Exchange ActiveSync
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VIP unable to add multi-factor authentication for Exchange ActiveSync

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Article ID: 197443

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Updated On: 04-17-2025

Products

VIP Service

Issue/Introduction

Adding MFA protection to the Exchange ActiveSync IIS site causes authentication failures on mobile devices.

Resolution

Symantec VIP IIS integration offers MFA support for many IIS applications, including Outlook Web Access, AD FS for IIS, etc. Due to limitations with Exchange ActiveSync, adding VIP MFA protection to ActiveSync isn't a supported option.

Optionally, the Outlook apps for iOS and Android are cloud-backed applications that integrate Modern Authentication access controls. VIP natively integrates with Microsoft AD FS and Microsoft Entra ID to allow for strong authentication into Outlook and other Microsoft 365 applications.