Using Classic Outlook on Windows for personal email, calendar, and contact management
If the Inbox was emptied by a rule, Sweep, Archive, or deletion, use this recovery path:
- In Outlook on the web or Outlook.com, first set the message filter to All.
- If a filter is applied, messages may appear missing.
- Check the Other tab if Focused Inbox is enabled.
- If messages are there, select them and use Move to > Move to Focused inbox.
- Check the Archive folder.
- If messages were archived, select them and use Move to > Inbox.
- Check the Deleted Items folder.
- If the messages are there, select them and choose Restore.
- If they are not there, in Deleted Items select Recover items deleted from this folder, then select the messages and choose Restore.
- Messages removed from Deleted Items are recoverable for 30 days.
- Check mailbox rules and Sweep rules.
- Go to Rules settings and review any rule that moves or deletes mail.
- Edit or delete any incorrect rule.
- Sweep rules run once per day. Inbox rules run as soon as email arrives.
- Rules must be viewed and edited on a computer.
- If using classic Outlook on Windows, also check whether messages were moved by automatic handling.
- In Outlook on the web, Sweep can automatically delete incoming mail from a sender, keep only the latest message, or delete mail older than 10 days.
- Move to can automatically move messages from a sender to another folder.
- If the issue affects a Microsoft 365 Group mailbox rather than a personal Inbox:
- In OWA, open the group, go to Deleted Items, select the messages, and choose Restore.
- If the items are no longer in Deleted Items, a tenant admin can use
Restore-RecoverableItems -Identity <M365GroupEmailAddress>to restore mail fromRecoverableItemsto Inbox. - Warning: the PowerShell restore command requires tenant admin access.
Recovered messages are restored to their original folders when possible. If the original folder no longer exists, messages are restored to Inbox.
References: