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Prevent Outlook from automatically deleting accepted meeting invites [1]

September 8, 2025 by ES and UIS Communications [2]

By default, Outlook automatically deletes accepted or declined meeting requests, which can make it difficult to locate meeting details or attachments. Disabling this option ensures meeting invitations remain in your inbox.

NOTE: Emails in the Deleted Items and Junk Mail folders are automatically deleted after 30 days and cannot be easily accessed again. Review CU System’s data retention standards [3] for more information.

Disabling automatic deletion of meeting invites in Classic Outlook

1. In the Classic Outlook desktop app, click File.

2. Click Options.

3. Select Mail from the left-side menu and scroll down to the Send messages tab.

Classic Outlook settings menu – Screenshot showing the "File" and "Options" menus in Classic Outlook.

4. Uncheck the Delete meeting requests and notifications from Inbox after responding option.

Delete meeting requests setting – Checkbox labeled "Delete meeting requests and notifications from Inbox after responding" shown unchecked.

5. Click OK.

Disabling automatic deletion of meeting invites in New Outlook and Outlook on the web

1. In the New Outlook desktop app or Outlook on the web (outlook.office.com/mail [4]), select the gear icon on the top right-side.

New Outlook gear icon – Screenshot showing the gear icon in the top right of the New Outlook interface.

2. Select Calendar from the left-side menu and click the Events and invitations tab.

Calendar settings menu – Screenshot of the "Calendar" section in Outlook settings with "Events and invitations" highlighted.

3. Uncheck Delete invitations from Inbox after responding.

Delete invitations setting – Checkbox labeled "Delete invitations from Inbox after responding" shown unchecked.

4. Click Save.

Outlook Calendar [5], Outlook email [6]
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Source URL:https://www.cu.edu/blog/tech-tips/prevent-outlook-automatically-deleting-accepted-meeting-invites

Links
[1] https://www.cu.edu/blog/tech-tips/prevent-outlook-automatically-deleting-accepted-meeting-invites [2] https://www.cu.edu/blog/tech-tips/author/166688 [3] https://www.cu.edu/blog/uis-news/cu-system-administration-adopts-new-email-retention-procedure [4] https://outlook.office.com/mail/ [5] https://www.cu.edu/blog/tech-tips/tag/outlook-calendar [6] https://www.cu.edu/blog/tech-tips/tag/outlook-email