Back up Gmail as EML, PDF, MBOX, PST, or MSG

The right format depends on what you want to do with the backup later. If the goal is to browse a saved Gmail backup in Outlook, create a PST: it is the Outlook data file that keeps folders and messages together. The PST workflows on this page use classic Outlook, the Windows desktop app with a File tab.

Choose a format before exporting

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For a complete Gmail backup, Google Takeout in MBOX format is the most direct source copy. Convert that MBOX to PST when Outlook is the place where you plan to read or import the mail.

Is Gmail Archive or IMAP synchronization a backup?

Gmail's Archive command removes a message from the Inbox; it keeps the message in the same Gmail account. It does not create a file on your computer. IMAP synchronization also follows changes to the server mailbox, including deletions, so a connected mail client alone is not an independent historical backup.

A downloaded MBOX, EML, or exported PST gives you a separate copy. Test that copy in the app you would use after losing account access. Storing the only backup in Google Drive under the same account still leaves you dependent on access to that account.

Download one Gmail message as EML

1. Open the message in Gmail.
2. Open the message's More menu: the three dots beside the message controls, not the browser menu.
3. Choose Download message.

The downloaded .eml file keeps the message body, sender and recipient details, dates, and attachments in a standard single-message file. Open it in the mail app you expect to use later before removing the Gmail copy.

Does Download message save the whole conversation?

Treat Download message as a single-message export. If Gmail has grouped replies into a conversation, expand the particular reply and use its own menu. Save each required message, then check that the downloaded files include the senders, dates, and attachments you intended to keep. Giving the files distinct names makes a small set easier to check. Google documents the EML download command here.

Save a readable copy as PDF

Open the message, choose Print, then select Save as PDF or Microsoft Print to PDF as the printer or destination.

PDF works well when you only need a readable or printable record. It cannot be restored as a mailbox: it does not keep the folder tree or complete email data, and its attachments are not preserved as normal mail attachments. Download important attachments separately.

For a conversation, choose whether you want to print one message or the whole thread, then inspect the print preview. A clipped reply or omitted quoted section in the preview will also be absent from your PDF. Google notes that confidential-mode messages can prevent printing; use the sender's permitted sharing options instead. See Google's printing instructions.

Export a mailbox as MBOX with Google Takeout

MBOX stores many messages in a mailbox file, making it suitable for a full Gmail export. In Google Takeout, deselect all products, select Mail, choose all mail or specific labels, and create a ZIP or TGZ download. After extraction, the archive contains MBOX files, with Gmail labels recorded in X-Gmail-Labels message headers.

The size chosen in Takeout controls the ZIP or TGZ download parts, not the MBOX files inside them. Download and extract every part. Follow the Takeout-to-PST guide when the backup needs to open in Outlook.

Create a PST backup for classic Outlook

Choose the route that matches what you already have:

1. If the Gmail account is still active, add Gmail to classic Outlook through IMAP, wait for the required mail to download, then use Export to a file → Outlook Data File (.pst).
2. If you already have a Takeout export, convert the extracted MBOX files to PST with the MBOX to PST converter.

These linked instructions use classic Outlook. New Outlook has its own PST features; follow Microsoft's version-specific export instructions rather than looking for the classic File menu. Check its separate requirements for opening a PST in new Outlook, including a Microsoft 365 subscription and classic Outlook installed alongside it. After creating the PST, open it in classic Outlook and check an old message, a recent message, and several attachments.

Save an Outlook item as MSG

MSG is classic Outlook's format for a single message or other Outlook item. After Gmail has synchronized into classic Outlook, open the message, choose File → Save As, and select Outlook Message Format – Unicode (.msg) when that option is offered. Use this for a few chosen messages; PST is more practical for a mailbox.

How would you restore each backup format?

Choose the recovery destination before relying on a backup. Reading a saved message on disk and putting it back into an online mailbox are different tasks.

Gmail's web interface does not provide a Takeout-MBOX restore button. Moving a local archive back into Gmail requires a mail-client or migration workflow. Try a small folder first and check webmail for the uploaded messages before attempting the rest.

How often should you back up Gmail?

Choose an interval based on how much recent mail you could afford to lose. Google Takeout offers a recurring export every two months for one year; that schedule is not a continuous backup. Check each completed download and use a separate dated folder for each export. Google describes the schedule and export options.

For a time-sensitive move, note when you requested the export and account for mail arriving afterward. Keep earlier verified copies until you have tested their replacement. Downloading an archive does not itself free Gmail storage.

Include contacts and calendars deliberately

The mail formats above do not automatically include portable copies of contacts and calendars. For classic Outlook, export Google Contacts as Outlook CSV and Google Calendar as iCalendar, or include Contacts and Calendar as separate products in Google Takeout.

Verify and keep more than one copy

Open the finished files with the app you expect to use for recovery. For an MBOX archive, confirm that every Takeout part was extracted. For a PST, check folders, dates, message bodies, and attachments in classic Outlook. Then keep the verified backup in two separate storage locations, with one copy away from the computer that holds the live mailbox.

For a full mail-client restoration route, see restoring Takeout messages to Gmail. If you only need to inspect the saved archive, open the MBOX without Outlook.

Primary sources

• Google: Download your data
• Microsoft: Outlook data files

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