How To Free Up Yahoo Mail Storage Without Paying (2026)

Your Yahoo Mail is full, or close to it, and you would rather clean it up than pay.

You can usually get space back for free by deleting big attachments, emptying Trash and Spam, and clearing bulk senders.

Plan on about 20 minutes, plus extra time if you want to back up old mail first.

How much free storage does Yahoo Mail give you?

Plan	Storage	Notes
Free (U.S. help page)	20 GB	Included with every account
Free (UK help page)	15 GB	Not all plans are available in every locale
Yahoo storage plan	100 GB	For active users with newsletters, photos and attachments
Yahoo storage plan	1 TB	For long-time users with large archives
Yahoo Mail Plus	200 GB	Adds an ad-free inbox; combined with a storage plan, up to 1.2 TB

The 20 GB figure replaced a much larger free allowance, and media coverage tied the cap to an August 27, 2025 deadline.

Your own limit depends on your account and country, so check what Yahoo shows for you.

What happens if your Yahoo mailbox fills up?

Yahoo’s storage FAQ says you cannot send or receive email until you clear space.

It also says email sent to you while the mailbox is full is not stored and cannot be recovered.

Act early: messages that bounce while your mailbox is full are gone for good, so clean up before you hit the limit.

Existing emails stay while the account is active, and Yahoo says accounts inactive for 12 months or more may have messages deleted.

Step 1: open Yahoo’s Storage tool

One walkthrough describes a Storage icon at the lower left of Yahoo Mail in a desktop browser.

1. Sign in to Yahoo Mail in a desktop browser.
2. Click the Storage icon at the lower left.
3. Start with the preset searches Yahoo offers for quick wins.
4. Use Advanced Search to filter by date range or attachment type.

That guide says the tools are for desktop browsers, and the mobile app may lack them.

To see your current usage, CyberGuy reports it under More Settings on desktop, or on your profile in the mobile app.

Yahoo changes its interface often, so if you do not see these labels, use search instead.

Step 2: find the biggest emails and attachments

Search is the fastest way to find heavy messages.

What you want	Search to try	Source
Emails with attachments over 10 MB	has:attachment larger:10MB	CyberGuy report
Emails with document attachments	containattachmenttypes:document	Advanced Search output in a Yahoo storage guide
Attachments before a date	before:"yyyy-mm-dd"	Same guide

Change the size or date to suit your mailbox.

Download anything you want to keep before you delete the email.

Step 3: empty Trash and Spam

Deleted mail still counts against your quota until it is removed from Trash and Spam.

Yahoo’s help page says emails deleted from any folder except Spam go to Trash and are deleted automatically after 7 days.

Emptying Trash yourself clears the space sooner.

On the older desktop layout, hover over Trash, click the trash can icon, and confirm.

If it will not empty, see our fix for Yahoo Mail not emptying Trash.

Step 4: delete mail from the senders that fill your inbox

1. Open one email from the sender.
2. Hover over the sender’s name to see the full address.
3. Search for that address.
4. Select the first 25 results, then choose the option to select all matching messages.
5. Delete them, then empty Trash.

A domain-only search can match more mail than a full address, because companies often send from several addresses.

Archiving alone does not free space, according to that same guide.

Step 5: stop the same mail coming back

Use the unsubscribe link inside newsletters before you delete them.

Otherwise the space you just cleared fills up again.

Step 6: back up old mail before you delete it

Yahoo documents a way to download mail with IMAP into an app such as Thunderbird, Outlook or Mac Mail.

1. Enter Yahoo’s IMAP server export.imap.mail.yahoo.com, port 993, with SSL.
2. Use your full email address and password, or an app password if you use Account Key or an older app.
3. When asked whether to keep mail on the server, choose yes.
4. Set the app to download full messages, not previews.
5. Wait for the download, which can take days on large accounts.

Careful: Yahoo says that if you do not keep mail on the server, it deletes emails from your account once they are downloaded.

Yahoo also warns that folders with around 100,000 or more emails may not download completely, and suggests moving some messages to a new folder.

For a few important messages, you can forward them to another account such as Gmail instead.

How do you save a single important email as a file?

CyberGuy describes a no-software option for the few messages you cannot lose.

1. Open the email.
2. Choose View Raw Message.
3. Press Ctrl + S on Windows or Cmd + S on Mac.
4. Save it as a .txt or .eml file.

This suits a handful of receipts or records, not a whole mailbox.

For a whole mailbox, the IMAP download above is the better route, and Yahoo says to contact the mail app’s developer if the app itself gives you trouble.

Which folders should you check besides the inbox?

Mail with large attachments can sit in any folder, so look beyond the inbox.

• Sent: messages you sent with photos or files attached.
• Trash and Spam: both still count until removed.
• Old folders: mail filed away years ago.

After the attachment searches above, open Sent and your older folders and delete heavy messages there as well.

Quick reference: what to try for which problem

Problem	Fix	Section
Mailbox almost full	Run the attachment searches and delete large emails	Step 2
Deleted mail still counts	Empty Trash and Spam	Step 3
One sender fills the inbox	Search the address and delete all matches	Step 4
Want to keep old mail	Download with IMAP first	Step 6
Cleanup is not enough	Consider a storage plan	Next section

When is paying the better option?

If you receive frequent attachments, Yahoo’s help page suggests upgrading early rather than waiting for the limit.

You can change plans anytime from your account’s Subscriptions page at login.yahoo.com/myaccount/subscriptions.

Our explainer on Yahoo Mail paid plans compares the options.

For a full-mailbox warning, read what to do about a Yahoo storage warning.

Official references: Yahoo Mail storage FAQ and Download your email with IMAP.