Gmail's free 15GB storage limit can fill up quickly, especially with attachments and Google Photos syncing. If you frequently receive large files or have years of correspondence cluttering your inbox, the dreaded “Account storage is full” notification can halt email sending and receiving. While upgrading to Google One is an option, a more cost-effective solution is transferring your messages to a new archive account before Google ends POP3 support later this year.

Understanding the POP3 Deadline

Google announced that POP3 (Post Office Protocol 3) will be phased out for existing users in 2026. New users already lost access in early 2026, but current users can still use the feature for a limited time. POP3 allows you to fetch emails from one Gmail account to another, making it ideal for moving large volumes of messages. Once removed, alternative methods like IMAP or manual forwarding become less efficient, emphasizing the urgency of acting now.

How to Back Up Your Email

Before transferring, create a local backup to prevent data loss. Use Google Takeout to download all messages. For a test account with 75,000 emails, the download took about two hours. Store the backup on an external drive or cloud storage (e.g., iCloud, OneDrive) as a safety net. After confirming the transfer is complete, you can delete the backup, but keeping it is wise for long-term archiving.

Step-by-Step Transfer Process

Follow these steps to relocate your inbox clutter to a new account:

1. Enable POP3 on your original account: Log in, go to Settings > See all settings > Forwarding POP/IMAP. Select “Enable POP for all mail” and choose “delete Gmail's copy” under “When messages are accessed with POP.” Save changes.
2. Create a new archive account: Set up a fresh Gmail address (e.g., yourname.archive@gmail.com) to serve as your storage unit.
3. Import emails into the new account: Log into the archive account, go to Settings > Accounts and Import > Add a mail account. Enter your original email address, select “Import emails from my other account (POP3),” enter your password (or an app password—see below), set port to 995, and check “Always use a secure connection (SSL),” “Label incoming messages,” and “Archive incoming messages (Skip the Inbox).” Click Add Account.
4. Create an app password if needed: If your regular password fails (common with 2-Step Verification enabled), visit myaccount.google.com/apppasswords. Create a passcode named “Email Transfer,” then use that 16-digit code in step 3. Google only shows the code once; save it securely.
5. Wait for the transfer: Messages migrate automatically over hours to days. A 75,000-email test took two full days. After completion, manually empty the Trash folder in the original account to free space.

What Gets Transferred and What Doesn't

POP3 transfers all inbox, sent, and archived emails, but not Drafts or Spam. Drafts must be moved manually (e.g., copy and paste into new account). Spam auto-deletes after 30 days, so you can ignore it. After importing, your original account drops those messages into Trash; empty it to regain storage. For example, a test account using 12GB shrank to 0.66GB after the transfer.

Post-Transfer Cleanup

Once emails are imported, stop the automatic sync to avoid re-transferring new messages. In your archive account, go to Settings > Accounts and Import, find your original account under “Check mail from other accounts,” and click delete. Also revoke the app password if you created one by visiting the app passwords page and clicking the trash icon. Lastly, remember that Google deletes accounts inactive for over two years. Log into your archive account at least once every two years to keep it alive.

By acting before POP3 vanishes, you can effectively double your free storage without paying a cent. This method lets you clear clutter, maintain access to old emails, and avoid interruptions from storage warnings. Start the process today to secure your digital inbox.

Source: CNET News