How to Archive Emails in Outlook

Get rid of old emails manually or automatically

Most people who use email clients tend to let emails accumulate inside their inbox, but once those emails total tens of thousands, Outlook's performance can suffer.

Thankfully, you can learn how to archive emails in Outlook and finally manage those old emails, either manually or automatically.

Instructions in this article apply to Outlook for Microsoft 365 and Outlook 2019, 2016, 2013, and 2010.

How to Archive Emails in Outlook Manually

If you prefer to control when your old emails are archived and where they're archived, there's a manual process you can follow to do that. You can manually archive email messages inside any folder.

  1. Open Outlook and select File > Info > Tools > Clean Up Old Items.

    selecting Clean Up Old Items
  2. In the Archive pop-up window, select Archive this folder and all subfolders and then select the folder where you want to archive items.

    Archive this folder and subfolders.
  3. Select the Archive items older than drop-down list, then set the date beyond which you'd like to archive messages.

    You can also select Browse to identify an individual PST file you'd like to use for this archive. Or you can keep it as the default file name.

    manually archiving messages
  4. Select OK. Outlook will now archive the messages in that folder according to the settings you've configured.

    Selecting OK.
  5. If you'd prefer to archive messages in all folders rather than individual ones, select Archive all folders according to their AutoArchive settings. If you choose this, you'll need to go back to the Home tab, right-click one of the folders you want to set the AutoArchive settings for, then select Properties.

    Archive all folders.
  6. In the Properties window, select the AutoArchive tab.

    Archive this folder using these settings.
  7. Select Archive this folder using these settings, then configure the settings to how many months of messages you want to keep, and where to move old items.

    Using AutoArchive Settings, configure both how messages get archived when you've enabled AutoArchive, as well as how emails are archived when you manually archive them using the AutoArchive settings.

    setting AutoArchive folder settings

How to Manually Trigger AutoArchive

You can trigger AutoArchive either manually or automatically. If you've already set up your AutoArchive settings for all of your folders as described above, you can trigger the archive procedure instantly.

Select File > Info > Tools > Mailbox Cleanup, then select AutoArchive to trigger the archival process. This will use the AutoArchive settings you've configured for each mail folder.

How to Automatically Trigger AutoArchive

In addition to manually triggering the archive procedure, you can also set up AutoArchive to run regularly.

  1. Select File > Options > Advanced > AutoArchive Settings.

    selecting AutoArchive Settings
  2. In the AutoArchive settings window, select Run AutoArchive every and enter how often you want to run AutoArchive.

    You can configure the settings to prompt when AutoArchive runs, and set it to either delete old email messages or move them to an archive PST file on your computer.

    AutoArchive settings in Outlook
  3. Select OK, and AutoArchive will run at the interval you set, so you never have to worry about your inbox taking up too much space.

    Selecting OK.

Use Outlook Sweep to AutoArchive in Outlook Web

On Outlook Online, archiving messages is a manual process. A function called Outlook Sweep helps you keep your inbox clean.

It's impossible to change the age of the messages you archive, but at least the sweep feature gives you the ability to archive all of your inbox messages older than 10 days. This will help you keep your inbox clean automatically.

  1. Open the account inbox where you'd like to archive email messages. Select the email you wish to archive, then select Sweep from the menu.

    Selecting Sweep.
  2. In the pop-up screen, select Always move messages older than 10 days from the INBOX folder.

    Always move messages older than 10 days.
  3. Select the Move to drop-down menu and select Archive.

    moving old messages to archive in
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