How to Archive Emails in Outlook 365

To archive email in Outlook 365, select a message and choose Archive on the toolbar or ribbon. Outlook moves it out of your Inbox into the account’s Archive folder, where you can still search for it or move it back. The steps below cover Outlook for Microsoft 365 on Windows, with notes for the web, new Outlook, and Mac.

What You’ll Need

Access to the Microsoft 365 account containing the email, in Outlook for Windows, Outlook on the web, new Outlook, or Outlook for Mac.
A moment to check that you are archiving the right message or messages. Archiving is reversible, but it changes where the email appears.
If you want to move mail into a separate Online Archive mailbox rather than the regular Archive folder, your organization must have enabled that mailbox for your account.

Step-by-Step

Open the correct mailbox. Start Outlook and select the account whose messages you want to organize. If you have several accounts, shared mailboxes, or folders open, check the account name before acting. The Archive command moves mail within the mailbox you are viewing; it is not a way to transfer a message to a different account.
Find and select the email. In the Inbox or another mail folder, click the message once. To select adjacent messages in classic Outlook for Windows, click the first message, hold Shift, and click the last. To select separate messages, hold Ctrl while clicking each one. On a Mac, use Command-click for separate messages and Shift-click for a range. In Outlook on the web or new Outlook, use the checkboxes that appear beside messages if you prefer to select a group.
Use the Archive command. In classic Outlook for Windows, go to Home > Archive on the ribbon. In new Outlook and Outlook on the web, select Archive from the message toolbar; if the toolbar is condensed, look under the More actions menu (the three dots). In Outlook for Mac, select the message and click Archive on the toolbar. The command may appear as an icon, so pause over it to check its tooltip before clicking.
Confirm the message left the current folder. Outlook normally removes an archived message from the Inbox immediately and places it in the account’s Archive folder. Depending on your view and connection, the folder may take a moment to refresh. Archiving does not normally delete the message or remove it from search. If the message remains visible, refresh Outlook or check whether it is still selected in another folder or view.
Archive several messages at once when appropriate. Select the messages using the methods above, then choose Archive once. Review the selection before acting, particularly when using a search result or a conversation view: a conversation may contain multiple messages, and the selected result may not represent every message you intend to move. If you only want to archive one message in a conversation, open the conversation and select that individual message if your Outlook view allows it.
Locate archived email later. In the folder pane, expand the same account and open Archive. If you do not see it, expand the account’s folder list or use Outlook’s search. Search results can include items from multiple folders, so check the result’s folder or open it and review its location before assuming it was archived. In Outlook on the web, you can also use the folder list to open Archive directly.
Move a message back if needed. Open the Archive folder, select the message, and choose Move or Move to, then select Inbox. In classic Outlook, you can also drag the message from Archive to Inbox. Moving it back does not create a new copy; it changes the folder where the existing message is stored. You can move it to another folder instead if that is a better fit.
Use Online Archive only when that is what you mean. Outlook’s regular Archive folder is part of the mailbox and is available to most users by default. An Online Archive, sometimes called an In-Place Archive, is a separate mailbox area that an administrator may enable for work or school accounts. If it is available, it appears separately in the folder pane. To put a message there, select it and use Move or Move to to choose the Online Archive destination; the ordinary Archive button generally moves it to the regular Archive folder instead.

Common Mistakes

Confusing Archive with Delete. Archive is for keeping mail while clearing it out of the Inbox. Delete sends a message to Deleted Items, where it may later be removed by retention settings or emptied by a user. If you need to keep a message, verify that you chose Archive rather than Delete.

Assuming Archive frees mailbox storage. The regular Archive folder is usually still part of the same mailbox and counts toward its storage limit. It tidies the Inbox but does not necessarily reduce the mailbox’s total size. A separate Online Archive may have different storage and retention arrangements, which are set by your organization.

Expecting the Archive button to file mail by date or project. The button usually moves messages to a single Archive folder; it does not automatically sort them into year, sender, or project folders. Use Move to when you need a specific destination.

Archiving a broad selection without checking it. A search may return messages from several folders, and selecting all results can move more than the current Inbox items. Review the selected count and messages first. If the wrong items move, search for them in Archive and move them back to their original folders.

Mixing up the regular Archive and Online Archive. The names are similar, but the locations and administration differ. Do not assume the Archive button sends mail to a separate, long-term archive mailbox. Check the folder pane or ask your Microsoft 365 administrator if you need to use a managed archive.

Tips

Archive selectively. Keep messages that need a response or action in the Inbox, and archive items you want to retain but do not need to see there. For actionable mail, flag it or move it to a task-related folder rather than relying on memory.
Use search instead of browsing when the folder is large. Search for a sender, distinctive subject words, or a date range, then check the result’s location. Outlook search syntax and options vary by version, but a simple name or subject search is often enough to find a message.
Try a short test before archiving a large batch. Archive one message first, then open the Archive folder and confirm the result. This helps distinguish the regular Archive folder from an Online Archive or a similarly named folder you created yourself.
Keep a consistent folder system. If you need more than one destination, create folders for meaningful categories and use Move to. Avoid making many nearly identical folders that are difficult to search.
Remember that retention rules can apply. Work and school accounts may have organization policies that retain, delete, or move messages regardless of your personal folder arrangement. Ask your IT team about important records rather than assuming that moving a message preserves it indefinitely.

Troubleshooting

The Archive button is missing. Make sure a message is selected and look for the command on the Home ribbon or message toolbar. In new Outlook or Outlook on the web, check the three-dot More actions menu. In classic Outlook, the ribbon may be collapsed; expand it or use the ribbon’s customization options to add the command. If you are working in a shared mailbox or a non-Microsoft account, available commands can differ.

The message is not in the Archive folder. Confirm which account you used and search for a distinctive word in the subject or sender. Check the message’s folder or location in the search result. It may have gone to a different folder because you used Move, or the Archive folder may be hidden in a collapsed folder list. Refresh Outlook and check Deleted Items if you may have clicked Delete by mistake.

Outlook says it cannot move the item. Check that you are online and that Outlook has finished synchronizing. Close and reopen the message if it is open in a separate window, then try again. If the error affects a shared mailbox, a large batch, or only a particular folder, try moving one message at a time and contact your administrator if it continues; mailbox permissions or a service issue may be involved.

You cannot find an Online Archive. The separate archive mailbox is not automatically available to every Microsoft 365 account. For a work or school account, ask your administrator whether it is enabled and whether a retention policy controls when mail appears there. For a personal account, use the regular Archive folder unless your Outlook setup specifically provides a separate archive location.

You archived the wrong message. Search for it, open the Archive folder, select the message, and move it back to Inbox or its previous folder. If you cannot find it there, check Deleted Items and other folders. Avoid emptying Deleted Items until you have confirmed the message is safe.

Frequently Asked Questions

Does archiving delete an email in Outlook 365?
No. The regular Archive command moves the email out of its current folder, usually the Inbox, and into Archive. It remains available unless another action or an organization’s retention policy removes it.

Where do archived emails go?
They normally go to the Archive folder under the same account. A separate Online Archive is a different mailbox area and may require your Microsoft 365 administrator to enable it.

Can I archive multiple emails at once?
Yes. Select multiple messages in the folder or results list, check that the selection is correct, and choose Archive. Outlook applies the command to the selected items.

How do I retrieve an archived email?
Open the account’s Archive folder, select the message, and use Move to > Inbox, or drag it to Inbox in classic Outlook. You can also search for the message and then move it from its current location.

Does archiving reduce my mailbox size?
Usually not when you use the regular Archive folder, because it is still part of the same mailbox. A separate Online Archive may be managed differently, but its availability and storage rules depend on your account and organization.

Can Outlook archive messages automatically?
Some versions of classic Outlook for Windows include AutoArchive settings, but this is separate from clicking Archive and may not be available or suitable for every Microsoft 365 mailbox. New Outlook and Outlook on the web do not provide the same classic AutoArchive controls. For automatic retention or movement in a work account, check with your administrator before changing settings.

Try it: the Date Difference Calculator: days, months, years and weekdays between two dates, with the DATEDIF formulas.

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