If your Gmail inbox is overflowing with thousands of messages, you're not alone. The free 15GB storage limit fills up quickly, especially when it's shared with Google Drive and Google Photos. But instead of paying for more storage or spending hours deleting old emails, there's a smarter solution: transfer everything to a new, dedicated archive Gmail account. This process uses Gmail's built-in POP3 tools to automatically pull all messages from your primary inbox into a second account. The catch? Google plans to end POP3 support later this year. New users already lost access in early 2026, but current users can still use it for now. This is your window to free up that precious 15GB without spending a dime.

Why You Should Act Now

Gmail's 15GB free storage is shared across Gmail, Google Drive, and Google Photos. Heavy email users often hit the limit sooner than expected. Once you see the "Account storage is full" notification, you can't send or receive emails until you free up space. The quickest fix is upgrading to Google One (100GB for $20/year), but that adds recurring costs. Deleting old emails manually is tedious and risky if you need them later. Transferring messages to a new account lets you keep everything while restoring your main inbox to zero usage.

Google is discontinuing POP3 support for security reasons. POP3 (Post Office Protocol) allows email clients to download messages from a server. While it has been a standard for decades, Google is modernizing its infrastructure. After the cutoff, you'll need to use IMAP or web-based methods, which are less straightforward for bulk transfers. So the window to use this simple POP3 loophole is closing.

Step-by-Step: How to Transfer Gmail Messages

Before starting, back up your emails using Google Takeout. This ensures you have a local copy in case anything goes wrong. The backup process took about 2 hours for 75,000 messages in our test. Once backed up, follow these steps:

Step 1: Enable POP in your original Gmail account

Log into your original account, click the gear icon, select See all settings, then go to the Forwarding and POP/IMAP tab. Choose Enable POP for all mail. Under When messages are accessed with POP, select delete Gmail's copy to automatically remove emails from your original account after transfer. Save changes.

Step 2: Create a new Gmail account

Set up a fresh Gmail account that will serve as your archive. Keep it simple; you can name it something like "oldemails@gmail.com".

Step 3: Configure import in the new account

Log into your new account, go to Settings > See all settings > Accounts and Import. Next to Check mail from other accounts, click Add a mail account. Enter your original Gmail address, select Import emails from my other account (POP3), and click Next. Enter the password of your original account. You may need a Google app password (see below). Set Port to 995, and check these three boxes: Always use a secure connection (SSL), Label incoming messages, and Archive incoming messages (Skip the Inbox). Click Add Account. Then choose Yes, I want to be able to send mail as your original address to complete setup.

Creating a Google App Password

In testing, the regular Gmail password often fails during POP3 import. The solution is a 16-digit app password. To generate one, visit https://myaccount.google.com/apppasswords (you must have two-step verification enabled). Name the password (e.g., "Bulk Email Transfer") and click Create. Copy the 16-digit code immediately, as Google shows it only once. Use this app password instead of your regular password in step 6 of the import process. After the transfer is complete, you can delete the app password from the same page.

What Happens During and After Transfer

Once linked, the transfer runs automatically in the background. For 75,000 messages, it took about two full days to complete. During this time, the original account will place all transferred messages in the Trash folder. After the transfer finishes, you must manually empty the Trash to reclaim storage. In our test, removing 75,000 messages from Trash took about an hour. The original account's Gmail storage dropped from 12GB down to just 0.06GB.

Messages That Won't Transfer

Two categories are excluded: Drafts and Spam. Drafts must be handled manually. Spam messages are automatically deleted after 30 days, so you can either wait or manually clear the Spam folder.

Once all emails are imported, you should stop the automatic transfer to avoid future duplication. In your new account, go to Settings > Accounts and Import and delete your original account from the Check mail from other accounts list. Also, if you created an app password, delete it from your Google account settings.

Keeping Your Archive Account Active

Important: Google deletes accounts that are inactive for more than two years. To keep your archive alive, simply log in at least once every two years. You don't need to send emails; just signing in is sufficient.

By following this guide, you can enjoy a fresh start with your primary Gmail inbox and keep all your old messages safely stored in a zero-cost archive. Don't delay—the POP3 window is closing soon.

Source: CNET News