Delete a single message in Outlook

To delete one email, click on it to select it, then press the Delete key on your keyboard. The message moves to your Deleted Items folder. If you use Outlook on the web, click the trash icon above the message list instead.

You can also right-click on a message and choose Delete from the menu that appears. This works the same way — the message goes to Deleted Items, not permanently gone. Either method takes a few seconds and leaves the message recoverable until you empty the Deleted Items folder.

Empty your Deleted Items folder permanently

Messages in Deleted Items stay there until you empty the folder. To do this in Outlook desktop, right-click on the Deleted Items folder in the left sidebar and choose Empty Folder. A dialog box will ask you to confirm — click Yes, and those messages are permanently removed from your account.

In Outlook on the web, open the Deleted Items folder, then click the trash icon at the top of the message list. Choose Delete All to remove everything in that folder at once. This is the step that actually frees up space in your account and makes recovery impossible.

Key Takeaways

  • Pressing Delete moves a message to Deleted Items, but does not remove it from your account or free up space.
  • To permanently delete messages, you must empty the Deleted Items folder using the Empty Folder command or Delete All button.
  • Outlook on the web uses a trash icon instead of a Delete key, but the process works the same way in both versions.
  • Once you empty Deleted Items, those messages cannot be recovered, so review the folder before confirming the permanent deletion.
  • You can search by sender or subject to select many messages at once, then delete them all together instead of one at a time.

Delete multiple messages at once

If you need to remove several emails, select them all first. Click on the first message, then hold Ctrl (or Cmd on Mac) and click each additional message you want to delete. You can also click the first message, hold Shift, and click the last message in a group to select everything between them.

Once you have selected all the messages you want, press Delete or right-click and choose Delete. They all move to Deleted Items together. Then empty the Deleted Items folder to remove them permanently and free up the space they were using.

Delete mail by sender or subject

If you want to remove many messages from one person or about one topic, use the search box at the top of Outlook. Type the sender's name or a keyword from the subject line, and Outlook shows only matching messages. Select all of them using Ctrl+A, then press Delete to move them to Deleted Items.

This is faster than deleting one at a time, especially if you have received many messages from the same source. After you delete them, remember to empty Deleted Items to free up space in your account. This method works well for cleaning out old newsletters, notifications, or messages from a single person you no longer need.

Recover a deleted message

If you delete a message by mistake, you can still recover it as long as you have not emptied Deleted Items. Open the Deleted Items folder, find the message, right-click it, and choose Move. Select the folder where you want it to go — usually Inbox or another folder you use regularly.

Once you empty Deleted Items, recovery becomes much harder. Some email providers keep a backup for a short time, but Outlook does not may provide this. The safest approach is to check Deleted Items before you empty it, especially if you have just deleted something important.

Set up automatic deletion rules

Outlook lets you create rules that delete or move messages automatically. Open the Settings menu (the gear icon in Outlook on the web, or File menu in desktop Outlook), then look for Rules or Manage Rules and Alerts. You can set up a rule to automatically delete messages from a specific sender, or messages with certain words in the subject line.

Be careful with automatic deletion rules — once a message is deleted by a rule, you cannot easily recover it. Test the rule on a small group of messages first, or use a rule that moves messages to a folder instead of deleting them, so you can review them before they are gone permanently.

Frequently Asked Questions

Can I recover a message after I empty Deleted Items?

Recovery becomes very difficult after you empty Deleted Items. Outlook does not keep a separate backup of deleted messages. If you need a message back, contact your email provider's support team when ready — they may be able to restore it from a server backup, but this is not may provide and only works for a limited time after deletion.

Does deleting mail free up space in my Outlook account?

Moving a message to Deleted Items does not free up space. You must empty the Deleted Items folder to actually remove the message from your account and reduce the space it uses. Large attachments take up the most space, so deleting messages with big files is the fastest way to free up room.

What is the difference between Delete and Archive in Outlook?

Delete moves a message to Deleted Items, where it stays until you empty that folder. Archive moves a message to a separate folder (usually called Archive) where it stays permanently unless you delete it. Archive is useful if you want to keep old messages but remove them from your main inbox view.

Can I undo a delete if I just did it?

Yes. Press Ctrl+Z (or Cmd+Z on Mac) when ready after you delete a message, and Outlook will move it back to where it was. This only works for a few seconds after the delete, so act quickly. If you have already closed Outlook or switched folders, undo may not work.

How do I delete messages with large attachments to save space faster?

Use the search box to find messages with attachments by typing "has:attachment" in Outlook desktop, or look for an attachments filter in Outlook on the web. Sort by size if possible, then select and delete the largest ones first. Empty Deleted Items afterward to actually free up the space.