Legacy Outlook Email Status Update via HTTP Call

Last reviewed: September 30, 2026

This page is retained as a legacy integration reference for environments that still update Outlook email status through an HTTP call.

What changed in this article

• Marked the Outlook HTTP-call procedure as legacy and integration-specific because Microsoft authentication and Graph/API behavior can change.
• Added checks for OAuth/token handling, endpoint ownership, least-privilege permissions, response validation, and audit logging.
• Added guidance to avoid hard-coded credentials and to confirm whether Microsoft Graph or a maintained integration should replace this approach.

Validation workflow

1. Confirm the customer still needs this legacy HTTP-call workflow and identify the supported endpoint.
2. Validate authentication, permission scope, request body, expected status code, and failure response in a controlled test.
3. Document token storage and audit requirements before using the workflow in shared automation.

Review note: This page now warns that Outlook status changes should use maintained Microsoft/API practices where available.

Last updated: September 30, 2026

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