Yahoo Mail Storage Full How to Free Up Space
Applies to
Yahoo Mail
Last updated
2 March 2026
Problem
Yahoo Mail displays a warning that your mailbox storage is full or nearly full. You may be unable to receive new emails, send messages with attachments, or archive older content. In some cases, incoming emails are rejected until space is cleared.
This usually happens because of large attachments, thousands of stored messages, or a full Trash and Spam folder that has not been emptied.
Solution
Delete large emails, clear unnecessary folders, and permanently remove messages from Trash and Spam. Regular maintenance ensures your account remains within storage limits and continues receiving new emails.
Step-by-step instructions
Check storage usage
Log in to Yahoo Mail via a web browser.
Open account settings and review your current storage usage if displayed.
Sort emails by size
In the inbox search bar, look for large attachments using size filters if available.
Delete emails with large attachments that are no longer needed.
Empty Trash and Spam folders
Open the Trash folder and permanently delete all messages.
Repeat this process for the Spam folder.
Delete old newsletters and promotions
Search for promotional emails or newsletters you no longer need.
Select multiple messages at once and delete them in bulk.
Remove large sent attachments
Open the Sent folder and review messages with attachments.
Delete unnecessary large files to free up space.
Permanently delete again
After deleting emails, return to Trash and empty it to reclaim storage space fully.
Optional methods or tools
- Download important attachments to your computer before deleting emails
- Use search filters to find emails from specific senders
- Unsubscribe from mailing lists to reduce incoming clutter
- Access Yahoo Mail via desktop browser for easier bulk deletion
Best practices or tips
- Regularly clear Spam and Trash folders
- Avoid storing large files long term in email
- Archive important emails locally if needed
- Review storage usage monthly
- Keep your inbox organised with folders
When Yahoo Mail storage becomes full, incoming emails may stop arriving until space is cleared. Large attachments and forgotten Trash folders are the most common causes of storage limits being reached.
By routinely deleting unnecessary messages and managing attachments carefully, you can maintain available space and prevent interruptions. With consistent inbox maintenance, Yahoo Mail continues operating smoothly without storage warnings.
