How to Back Up iCloud Email (5 Ways)

The short answer: iCloud.com has no "download all" button for Mail, so there's no one-click backup in the browser. To back up iCloud email you export mailboxes as .mbox from Apple Mail on a Mac, request a copy of your mail from Apple's data portal, sync the account into any client over IMAP, or forward your mail to an address that archives every message to your own cloud as a .eml file. Here's each, step by step.

One thing to get straight up front, because it catches almost everyone: your iPhone's iCloud backup does not include your email. Device backups skip mail entirely, on the logic that it already lives on Apple's mail server. Which means the only copy of your email is the one in your iCloud account — and that's not a backup.

Does iCloud back up your email?

No. iCloud syncs your email — every device sees the same mailbox — but sync is not backup. Delete a message on your phone and it disappears everywhere, and once it leaves the Trash (kept up to 30 days by default), it's gone. Lose access to your Apple Account — a forgotten password, a lockout, a lapsed custom-domain plan — and the whole mailbox goes with it. A backup is a copy that survives the account it came from, and Apple doesn't make one for you. The methods below do.

Method 1: Export mailboxes from Apple Mail on a Mac (.mbox)

If you have a Mac, Apple Mail has a genuine built-in export — something Gmail and Yahoo users can only envy:

1. Open Mail and select a mailbox in the sidebar (⌘-click to select several).
2. Choose Mailbox → Export Mailbox… (or right-click the mailbox).
3. Tick Export all subfolders if you want the folders inside it too — easy to miss, and unchecked means the children are skipped.
4. Pick a destination folder. Mail writes one .mbox package per mailbox.

To restore later, use File → Import Mailboxes and point it at the .mbox.

The gotcha every guide skips: Mail can only export what it has downloaded. On a mailbox with years of history, macOS may not have synced everything locally yet — people have exported what looked like a complete archive and found most of a decade missing. Let Mail finish syncing (leave it open, check the activity window), then sanity-check the exported .mbox size against your mailbox before you trust it. For very large mailboxes, export folder-by-folder rather than the whole account at once — big single exports are the ones that fail.

Good: free, official, no extra software, captures your history. Bad: Mac-only, manual (a snapshot that's stale immediately), and the .mbox is a container you can't browse without importing it somewhere (or opening it in our MBOX viewer).

Method 2: Request a copy of your mail from Apple

Apple's Data and Privacy portal (privacy.apple.com) can prepare a copy of the data tied to your Apple Account — and per Apple's current documentation, that now includes iCloud Mail, delivered as standard .eml files. Plenty of older guides still claim mail is excluded; that was true of earlier versions of the export, but Apple's own documentation now lists email among the data you can request.

1. Sign in at privacy.apple.com.
2. Choose Request a copy of your data and select mail (and anything else you want).
3. Wait — preparation can take days for a large account.
4. Download the archive within the window Apple gives you (about two weeks) before it expires.

Good: official, works from any device with a browser, no Mac needed, and it arrives as portable per-message .eml files. Bad: slow, one-shot, and easy to forget — the download link expires, and the archive is stale the day it's built. It's a way to get your history out, not a way to stay backed up.

Method 3: Sync iCloud into a desktop client over IMAP (works on Windows)

For a Windows PC — or if you just want everything in Thunderbird or Outlook — add iCloud as an IMAP account and let it download your mailbox. Two Apple-specific things first: you sign in with an app-specific password, not your Apple Account password (generate one at account.apple.com under Sign-In and Security; it requires two-factor authentication, which nearly every account already has). And iCloud is IMAP-only — there's no POP.

One quirk: for the incoming server, the username is usually just the name part of your address (emilyparker, not [email protected]) — most clients work this out, but it's the first thing to check if sign-in fails.

Once synced, make a permanent copy: in Thunderbird, the ImportExportTools NG add-on exports folders to MBOX or individual .eml files (full Thunderbird walkthrough here); in Outlook, File → Open & Export → Import/Export exports a .pst — which is also the answer if your goal is moving iCloud email into Outlook.

Good: free, cross-platform, captures full history — the honest version of what the "iCloud backup software" ads are selling. Bad: one-time snapshot on one computer, in a client-specific store, and keeping it current is on you.

Method 4: Save individual emails as .eml

For a one-off — a receipt, a contract — skip the full export:

• On iCloud.com: open the message and choose Download Message from its toolbar menu. You get a .eml file — the original message with headers and attachments intact.
• In Apple Mail: drag the message out of Mail into a Finder window and it lands as a .eml file. (File → Save As with Raw Message Source does the same thing.)

Worth noticing: when Apple hands you a single email, it hands you a .eml — the same standard format the automatic method below stores.

Method 5: Auto-forward to your own cloud (.eml) — the automatic one

Every method so far is a snapshot you have to remember to repeat. This is the one that keeps backing up new mail by itself — and unlike Yahoo, which charges for auto-forwarding, iCloud's is free and built in:

1. Connect a storage provider to InboxBucket — Google Drive, OneDrive, Dropbox, or S3 — and copy your private inbound address, e.g. [email protected].
2. On iCloud.com/mail, click the gear at the top of the Mailboxes list, open Settings → Mail Forwarding, tick Forward my email to, and enter that address.
3. Leave "Delete messages after forwarding" unchecked so your iCloud copy stays put. From then on, every incoming email is archived to your storage as the original .eml, deduplicated so nothing double-stores.

Prefer to forward only some mail — receipts, specific senders? Use a rule instead (in the same Settings pane): each rule can forward its matches to an address. And if you use an iCloud+ custom email domain, forwarding covers mail to those addresses too — which matters, because a custom-domain mailbox is exactly the kind you want a copy of if you ever leave Apple's ecosystem.

Good: continuous, automatic, and the copies land in storage you own as portable files. Bad: forwarding starts today — it can't reach your history. Pair it with Method 1, 2, or 3 for the back catalog.

Which method should you use?

The practical combination for most people: one full export now (Method 1 on a Mac, Method 2 or 3 anywhere) plus forwarding for everything new — the same pairing we recommend for any mailbox.

FAQ

Does iCloud automatically back up my emails?

No. iCloud device backups don't include email, and iCloud Mail itself is sync, not backup — deleting a message removes it from every device, and emptied Trash is unrecoverable after at most 30 days. If losing the account would mean losing the mail, you need to make a separate copy yourself.

How do I download all my iCloud emails at once?

There's no bulk download on iCloud.com — the web app only saves one message at a time. To get everything: export mailboxes from Apple Mail on a Mac (Mailbox → Export Mailbox…), request a copy of your mail from Apple's Data and Privacy portal, or sync the account into a desktop client over IMAP and export from there.

How do I save iCloud emails to a Windows PC?

Add iCloud to Thunderbird or Outlook as an IMAP account: server imap.mail.me.com, port 993, SSL, signed in with an app-specific password. Let it download your mailbox, then export to .eml/MBOX (Thunderbird with ImportExportTools NG) or .pst (Outlook). No Apple software is required.

Do I need an app-specific password for iCloud IMAP?

Yes. Third-party mail clients can't use your Apple Account password — generate an app-specific password at account.apple.com (under Sign-In and Security) and use that instead. Your account needs two-factor authentication enabled, which almost all accounts already have.

Can I export iCloud email to Outlook or a PST file?

Yes — add the iCloud account to desktop Outlook over IMAP (settings above), let it sync fully, then run File → Open & Export → Import/Export → Export to a file → Outlook Data File (.pst). Ignore the paid "iCloud to PST converter" tools ranking for this — Outlook itself does it for free.

What format does Apple Mail export — .mbox or .eml?

Mailbox → Export Mailbox… produces .mbox: one container file per mailbox, good for re-importing into a mail client but not browsable as files. Dragging individual messages out of Mail (or File → Save As → Raw Message Source) produces .eml: one standard, self-contained file per message. For long-term keeping, per-message .eml is the more durable choice.

Can I export email from my iPhone or iPad?

Not in bulk — the iOS Mail app has no mailbox export. From a phone, your options are per-message tricks (forwarding a message, or Download Message on iCloud.com in a browser), Apple's data-copy request, or setting up auto-forwarding once so new mail archives itself without needing any device at all.