[Outlook] (encryption) Add decryption APIs to preview page

[samantharamon]

Related PRs:

• [office-js-preview] (Outlook) Document decryption API DefinitelyTyped/DefinitelyTyped#73601
• [Outlook] (encryption) Create conceptual article office-js-docs-pr#5336

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 issues. Other issues are also a high priority. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

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Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit 810ff90:

💡 Validation status: suggestions

File	Status	Preview URL	Details
docs/requirement-sets/outlook/preview-requirement-set/outlook-requirement-set-preview.md	💡Suggestion	View (>=common-js || >=outlook-js-1.1 || >=excel-js-1.1 || onenote-js-1.1 || >=powerpoint-js-1.1 || visio-js-1.1 || >=word-js-1.1)	Details
docs/manifest/launchevent.md	✅Succeeded	View (>=common-js || >=outlook-js-1.1 || >=excel-js-1.1 || onenote-js-1.1 || >=powerpoint-js-1.1 || visio-js-1.1 || >=word-js-1.1)

docs/requirement-sets/outlook/preview-requirement-set/outlook-requirement-set-preview.md

• Line 98, Column 6: [Suggestion: learn-site-link-broken - See documentation] Link '/javascript/api/outlook/office.messagedecrypteventcompletedoptions?view=outlook-js-preview&preserve-view=true' points to a learn site page that doesn't exist. Check the path or URL and update the link.
• Line 104, Column 6: [Suggestion: learn-site-link-broken - See documentation] Link '/javascript/api/outlook/office.decryptedmessageattachment?view=outlook-js-preview&preserve-view=true' points to a learn site page that doesn't exist. Check the path or URL and update the link.
• Line 110, Column 6: [Suggestion: learn-site-link-broken - See documentation] Link '/javascript/api/outlook/office.decryptedmessagebody?view=outlook-js-preview&preserve-view=true' points to a learn site page that doesn't exist. Check the path or URL and update the link.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 issues. Other issues are also a high priority. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit 36f59e3:

💡 Validation status: suggestions

File	Status	Preview URL	Details
docs/requirement-sets/outlook/preview-requirement-set/outlook-requirement-set-preview.md	💡Suggestion	View (>=common-js || >=outlook-js-1.1 || >=excel-js-1.1 || onenote-js-1.1 || >=powerpoint-js-1.1 || visio-js-1.1 || >=word-js-1.1)	Details
docs/manifest/launchevent.md	✅Succeeded	View (>=common-js || >=outlook-js-1.1 || >=excel-js-1.1 || onenote-js-1.1 || >=powerpoint-js-1.1 || visio-js-1.1 || >=word-js-1.1)

docs/requirement-sets/outlook/preview-requirement-set/outlook-requirement-set-preview.md

• Line 98, Column 6: [Suggestion: learn-site-link-broken - See documentation] Link '/javascript/api/outlook/office.messagedecrypteventcompletedoptions?view=outlook-js-preview&preserve-view=true' points to a learn site page that doesn't exist. Check the path or URL and update the link.
• Line 104, Column 6: [Suggestion: learn-site-link-broken - See documentation] Link '/javascript/api/outlook/office.decryptedmessageattachment?view=outlook-js-preview&preserve-view=true' points to a learn site page that doesn't exist. Check the path or URL and update the link.
• Line 110, Column 6: [Suggestion: learn-site-link-broken - See documentation] Link '/javascript/api/outlook/office.decryptedmessagebody?view=outlook-js-preview&preserve-view=true' points to a learn site page that doesn't exist. Check the path or URL and update the link.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 issues. Other issues are also a high priority. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit bc81c33:

💡 Validation status: suggestions

File	Status	Preview URL	Details
docs/manifest/launchevent.md	💡Suggestion	View (>=common-js || >=outlook-js-1.1 || >=excel-js-1.1 || onenote-js-1.1 || >=powerpoint-js-1.1 || visio-js-1.1 || >=word-js-1.1)	Details
docs/requirement-sets/outlook/preview-requirement-set/outlook-requirement-set-preview.md	💡Suggestion	View (>=common-js || >=outlook-js-1.1 || >=excel-js-1.1 || onenote-js-1.1 || >=powerpoint-js-1.1 || visio-js-1.1 || >=word-js-1.1)	Details

docs/manifest/launchevent.md

• Line 69, Column 3: [Suggestion: learn-site-link-broken - See documentation] Link '/office/dev/add-ins/outlook/encryption-decryption?branch=samramon-decryption' points to a learn site page that doesn't exist. Check the path or URL and update the link.

docs/requirement-sets/outlook/preview-requirement-set/outlook-requirement-set-preview.md

• Line 98, Column 6: [Suggestion: learn-site-link-broken - See documentation] Link '/javascript/api/outlook/office.messagedecrypteventcompletedoptions?view=outlook-js-preview&preserve-view=true' points to a learn site page that doesn't exist. Check the path or URL and update the link.
• Line 104, Column 6: [Suggestion: learn-site-link-broken - See documentation] Link '/javascript/api/outlook/office.decryptedmessageattachment?view=outlook-js-preview&preserve-view=true' points to a learn site page that doesn't exist. Check the path or URL and update the link.
• Line 110, Column 6: [Suggestion: learn-site-link-broken - See documentation] Link '/javascript/api/outlook/office.decryptedmessagebody?view=outlook-js-preview&preserve-view=true' points to a learn site page that doesn't exist. Check the path or URL and update the link.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 issues. Other issues are also a high priority. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit 24403c2:

💡 Validation status: suggestions

File	Status	Preview URL	Details
docs/manifest/launchevent.md	💡Suggestion	View (>=common-js || >=outlook-js-1.1 || >=excel-js-1.1 || onenote-js-1.1 || >=powerpoint-js-1.1 || visio-js-1.1 || >=word-js-1.1)	Details
docs/requirement-sets/outlook/preview-requirement-set/outlook-requirement-set-preview.md	💡Suggestion	View (>=common-js || >=outlook-js-1.1 || >=excel-js-1.1 || onenote-js-1.1 || >=powerpoint-js-1.1 || visio-js-1.1 || >=word-js-1.1)	Details

docs/manifest/launchevent.md

• Line 69, Column 3: [Suggestion: learn-site-link-broken - See documentation] Link '/office/dev/add-ins/outlook/encryption-decryption' points to a learn site page that doesn't exist. Check the path or URL and update the link.

docs/requirement-sets/outlook/preview-requirement-set/outlook-requirement-set-preview.md

• Line 98, Column 6: [Suggestion: learn-site-link-broken - See documentation] Link '/javascript/api/outlook/office.messagedecrypteventcompletedoptions?view=outlook-js-preview&preserve-view=true' points to a learn site page that doesn't exist. Check the path or URL and update the link.
• Line 104, Column 6: [Suggestion: learn-site-link-broken - See documentation] Link '/javascript/api/outlook/office.decryptedmessageattachment?view=outlook-js-preview&preserve-view=true' points to a learn site page that doesn't exist. Check the path or URL and update the link.
• Line 110, Column 6: [Suggestion: learn-site-link-broken - See documentation] Link '/javascript/api/outlook/office.decryptedmessagebody?view=outlook-js-preview&preserve-view=true' points to a learn site page that doesn't exist. Check the path or URL and update the link.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

[Copilot]

Pull Request Overview

This pull request adds documentation for new decryption APIs in the Outlook preview requirement set, enabling add-ins to decrypt encrypted messages and their attachments through event-based activation.

• Added comprehensive documentation for message decryption functionality including new objects, events, and methods
• Updated the LaunchEvent manifest element to support the OnMessageRead event with HeaderName attribute for encryption
• Added reference to new encryption/decryption tutorial documentation

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
docs/requirement-sets/outlook/preview-requirement-set/outlook-requirement-set-preview.md	Added detailed documentation for decryption APIs including events, objects, and methods
docs/manifest/launchevent.md	Updated LaunchEvent documentation to include OnMessageRead event support and expanded HeaderName attribute usage

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