IBM Support

Error: “Your Administrator Has Blocked This Version of Outlook” when configuring Exchange Online (Office 365) with Outlook 2016 MAPI

Troubleshooting


Problem

When setting up IBM Content Collector to use Microsoft Exchange Online (Office 365) as the email source via Outlook 2016 (MAPI), the following error message appears:
“Your administrator has blocked this version of Outlook.”

Cause

  • ICC relies on a locally installed Outlook client (MAPI) for email connectivity.
  • Microsoft requires Modern Authentication (OAuth 2.0) for all Outlook clients connecting to Microsoft 365. Basic Authentication was permanently disabled on October 1, 2022.
  • Older versions of Outlook 2016 (before build 16.0.4600.1000) do not support Modern Authentication for Microsoft 365.
  • If the installed Outlook version is unsupported, the connection fails, and the above error is displayed.

Resolving The Problem

1. Check the Outlook Build:
  • In Outlook, go to File → Office Account → About Outlook.
  • Verify the version number.
2. Update Outlook 2016:
  • Ensure Outlook 2016 is updated to build 16.0.4600.1000 or higher.
  • Use one of the following supported channels:
     - Monthly Enterprise Channel
     - Semi-Annual Enterprise Channel
     - Current Channel
3. Enable Modern Authentication in Exchange Online:
  • Confirm that Modern Authentication (OAuth 2.0) is enabled for the tenant.
  • For hybrid setups, ensure that the on-premises Exchange organization is also configured for OAuth if necessary.
4. Reconfigure ICC:
  • Once Outlook is updated and Modern Authentication is enabled, try configuring the email source in ICC again.
  • The error message should no longer appear.

Document Location

Worldwide

[{"Type":"MASTER","Line of Business":{"code":"LOB76","label":"Data Platform"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSAE9L","label":"IBM Content Collector"},"ARM Category":[{"code":"a8m0z000000cxfqAAA","label":"Configuration-\u003EExchange Online"}],"ARM Case Number":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"4.0.1"}]

Document Information

Modified date:
18 September 2025

UID

ibm17245406

Page Feedback