Hello Shawn ClarkWilt,
Thank you for reaching out to the Microsoft Q&A. I understand how frustrating it is when you try to attach a document you just worked on, but Outlook only offers you files from last week.
This issue typically happens because Outlook's "Recent Files" list relies heavily on the macOS Spotlight index. If that index becomes desynchronized or "stuck" on an old cache, Outlook will fail to update with your new files.
Troubleshooting Steps
Step 1: Clear the System "Recent Items" List
Outlook for Mac mirrors the operating system's global "Recent Items" list. If that list is full or stuck, Outlook's list will be too.
- Click the Apple Logo in the top-left corner of your screen.
- Select Recent Items.
- Scroll to the very bottom and click Clear Menu.
- Restart Outlook.
- Result: This clears the system-level database. When Outlook restarts, it rebuilds its internal list from scratch, catching the files you actually touched today.
Step 2: Check "Full Disk Access" Permissions
If Step 1 did not work, Outlook might have lost the permission to "see" your recent file activity. This is common after macOS updates (like your update to Tahoe 26.2).
- Open System Settings > Privacy & Security.
- Click on Full Disk Access.
- Check if Microsoft Outlook is in the list.
- If unchecked: Check the box to enable it.
- If missing: Click the + button and add Outlook from your Applications folder.
- If already checked: Toggle it OFF, wait a few seconds, and toggle it ON again to reset the permission.
- Restart Outlook.
Step 3: Re-index Spotlight
If the list is still showing only old files, your Spotlight index (the search engine that powers that list) is likely corrupted.
- Open System Settings > Siri & Spotlight.
- Click Search Privacy (button at the bottom).
- Drag your Macintosh HD (or the specific folder where you save files) into this list.
- Wait 10 seconds.
- Select the drive/folder you just added and click the - (minus) button to remove it.
- Result: This forces a re-index. It may take 10–20 minutes, but it will populate the "Recent" list with accurate data once complete.
I hope this information helps resolve the issue you are experiencing with your system. Please let me know if you need further assistance or if there are any other details I can clarify for you.
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