How to Archive Emails in Outlook: Classic and New (2026)

If your Outlook inbox has turned into a to-do list you never finish, archiving is the quickest way to clear it without losing anything. I like it because it's a tidy-up, not a delete: the message leaves your inbox, but you can still search for it when a client asks 'what did you send me in the spring?'

Outlook comes in a few flavours, and the steps differ between them. Below I've followed Microsoft's own support pages for classic Outlook and new Outlook, and I've said where the pages don't give a step so I'm not guessing.

Archiving a message in classic Outlook for Windows

Classic Outlook is the older desktop app with the ribbon across the top. Microsoft's instructions are short:

1. Click the message, or select several messages in your list.
2. Go to the Home tab.
3. Click Archive in the Delete group on the ribbon.

Microsoft also says the Backspace key archives selected messages, with one catch: it works when the message is in the Reading pane, not when it's open in its own window. If the Archive button isn't where you expect, remember that ribbons shift a little between versions.

Archiving in the new Outlook app

The new Outlook has a simpler toolbar. According to Microsoft, you can do it from the message list or from an open message:

1. In your inbox, hold Ctrl and click each message you want to archive.
2. On the Message tab, click Archive.
3. Or, if you've opened one message, click Archive on its toolbar instead.
4. Watch for the pop-up notification, which confirms the action.

That pop-up matters more than it looks. Microsoft says it offers an Undo option, so if you archive the wrong thing, use it straight away.

What Archive does to your mailbox

People often hope archiving will shrink a bloated mailbox. Microsoft is direct about this: using the Archive button to move messages to the Archive folder doesn't reduce your mailbox size. It tidies the view, it doesn't free up space.

Question	What Microsoft's pages say
Does archiving delete the message?	No. It moves it out of the inbox, and archived items stay searchable
Will I see it on my other devices?	Yes, archived items remain available on your other devices
Does it shrink my mailbox?	No, mailbox size stays the same
Is AutoArchive in the new Outlook?	No, Microsoft says it isn't available there

Where your archived Outlook emails go

They land in a folder called Archive. For Microsoft 365, Outlook.com and Exchange accounts, Microsoft says this is a default folder that you can't delete, rename or move. If your account is POP or IMAP, you can create an Archive folder or point Outlook at one you already have.

In classic Outlook the folder list can be hidden. Microsoft's fix is View, then Folder Pane, then Normal. Once you can see the folder list, click Archive to browse everything you've filed away.

Bringing an archived Outlook email back

There's no special restore button. If you archived something by mistake, open the Archive folder and move the message back to your Inbox. Anyone who works with clients will do this sooner or later, usually when a quiet thread suddenly wakes up.

Archive or delete in Outlook: which to choose

• Archive anything you might need as proof later: quotes, agreed scopes, receipts, a client's brand details.
• Delete the pointless: newsletters you never open, automated alerts, duplicates.
• Archive once you've replied and nothing is waiting on you, so your inbox only shows work still open.

If you want a wider system around this, my story of the email management system that saved my inbox goes through how I decide what stays in view and what leaves it.

Archiving Outlook emails for a small team or shared inbox

If you share a mailbox with a virtual assistant or a business partner, agree one simple rule before anyone starts archiving. Mine would be: archive means 'handled', and anything still open stays in the inbox. Without that rule one person's tidy-up becomes another person's missing enquiry.

It also helps to say where you keep things. A message sitting in the Archive folder is still searchable, so a quick search by client name usually finds it faster than scrolling through folders.

Making Outlook archiving part of your week

Archiving works best as a small routine rather than a rescue mission. Here's a simple pattern for a solo business owner:

1. Open Outlook once in the morning and once mid-afternoon.
2. Reply, or decide to reply later and flag it.
3. Archive everything that's dealt with before you close the app.
4. Do a quick scan of the Archive folder on Fridays to check nothing needs a follow-up.

If email overload is the bigger problem, my notes on managing email overload with a few better habits pair well with this.

If you can't archive an email in Outlook

When the Archive button is missing or greyed out, try these in order:

1. Check which Outlook you're in. Classic Outlook, new Outlook and Outlook on the web all look different.
2. Select a message first, because the button stays dim until something is selected.
3. Look in the Delete group on the Home tab in classic Outlook, or the toolbar and Message tab in new Outlook.
4. Check your account type. POP and IMAP accounts may need an Archive folder set up first.
5. Update Outlook and restart it, then try again.
6. If it's still missing and it's a work account, ask your IT admin, because they can restrict features.

Microsoft's page for Outlook on the web lists the product but doesn't give separate steps, so menus vary there. Look for an Archive button on the toolbar above your message list.

Frequently asked questions

How do I archive emails in Outlook?

In classic Outlook, select the message, go to Home and click Archive in the Delete group. In new Outlook, select the message and click Archive on the Message tab or toolbar. A pop-up confirms it.

Does archiving delete my Outlook emails?

No. Microsoft says Archive moves messages out of your Inbox without deleting them, and archived items stay searchable.

Where do archived emails go in Outlook?

To the Archive folder. For Microsoft 365, Outlook.com and Exchange accounts it's a default folder that you can't delete, rename or move.

Does archiving free up mailbox space?

No. Microsoft says using the Archive button doesn't reduce your mailbox size.

Can I undo archiving in Outlook?

In new Outlook a pop-up offers Undo straight after you archive. Otherwise open the Archive folder and move the message back to your Inbox.