How to Back Up Your Email Before Closing an Account

Closing an email account is one of the few truly irreversible actions on the internet. Once a provider deletes an account — whether you close it yourself, a company shuts down a work email after you leave, or a domain lapses and takes its mailboxes with it — the emails are usually gone permanently, sometimes within days. There's no undo button, and support tickets asking to restore a closed account almost never work. If you're even considering closing an account, back it up first. Here's how to do it properly.

Step 1: Confirm the account still has full access

Do this before any deprovisioning starts. If it's a work account tied to your last day, back up before your final day, not after — IT often revokes access at close of business, sometimes before. If it's a personal account you're closing voluntarily, back up before you initiate the closure, since some providers begin wiping data immediately once you confirm.

Step 2: Download every folder, not just the inbox

People remember to back up their Inbox and forget Sent, Drafts, Archive, and any custom folders or labels. Sent mail is often the most valuable part of a backup — it's the only record of what you actually said, promised, or agreed to. Go through every folder deliberately.

Step 3: Choose a backup format you can actually use later

Most providers offer some kind of built-in export (Google Takeout, Outlook's .pst export, etc.), producing one large archive file. That's fine as a raw insurance copy, but it's painful to search or browse without importing it somewhere first. The more practical approach is an IMAP-based backup that saves each email as its own file — readable individually, searchable with normal file search, and not locked into one provider's export format.

Step 4: Verify before you close anything

This is the step people skip and regret. Before you click "delete account" or hand back a company laptop, actually open several archived emails, confirm attachments open correctly, and search for a specific message you remember receiving. A backup you haven't verified is a backup you're only assuming works.

Step 5: Store the backup somewhere outside the account you're closing

Obvious, but worth stating: your backup needs to live on a device or storage you control, not in a Drive or cloud storage tied to the same account you're about to delete. A local folder on your computer, backed up to an external drive or your own cloud storage of choice, is the safest bet.

Doing this with MailVault

MailVault is a free, open-source desktop app for macOS and Linux built for exactly this situation. Connect the account you're about to close over IMAP (OAuth for Gmail and Microsoft accounts, standard connection for everything else), select every folder including Sent and Drafts, and archive the whole thing as individual .eml files on your disk. Because each email is its own file in a standard, portable format, you can open, search, or move the archive freely afterward — no proprietary format, no vendor lock-in. Manual archiving like this is free and unlimited. If you're backing up several accounts on a recurring basis (say, every employee who leaves a company), scheduled automatic backups are a $4/month premium feature.

Frequently Asked Questions

Related reading: how to keep emails after server deletion, how to delete thousands of old emails safely, and how to leave Gmail without losing your emails.