missing emails

Change the sync settings so Outlook downloads recent mail, not just old items.

In classic Outlook for Windows:

1. Open Outlook.
2. Go to File > Account Settings > Account Settings.
3. On the Email tab, select the affected email account and choose Change.
4. Find the Download email for the past: slider.
5. Move the slider to a longer period (for example, 1 year) or all the way to the right to All so all mail is cached locally.
6. Select Next, then Done, close the window, and restart Outlook.

If the “missing” messages are in Deleted Items, also enable searching that folder:

1. In Outlook, go to File > Options > Search.
2. Check Include messages from the Deleted items folder in each data file when searching in All Items.
3. Select OK, then restart Outlook.

After these changes, Outlook will download and show newer emails as they sync from the server.

References:

• Troubleshooting Outlook search issues