Gmail Not Receiving Emails Because Storage Is Full
Short answer
When your Google account is full, Gmail stops sending and new mail bounces back to the sender with a "quota exceeded" error. Nothing already in your inbox is deleted. The fastest fix is to search has:attachment larger:10M, delete the biggest results, then empty Trash and Spam — mail usually starts flowing again within minutes.
On this page
A full Google account doesn’t break Gmail quietly. Sending fails with an error, and anyone who writes to you gets their message bounced back with a notice that your mailbox is over quota.
The good news: nothing you already have is deleted, and the fix is fast. This page is the quickest path back to working email, not a full cleanup.
What’s actually happening
Your 15GB is shared between Gmail, Drive and Photos. When the combined total hits the limit, Gmail enters a blocked state:
| Function | Status when full |
|---|---|
| Reading existing mail | Works normally |
| Searching | Works normally |
| Deleting | Works normally |
| Sending | Blocked |
| Receiving | Blocked — senders get a bounce |
| Drive uploads | Blocked |
| Photos backup | Stopped |
Note the implication: the cause may have nothing to do with email. A phone backing up 4K video to Google Photos is a very common reason for an inbox to stop working.
The fast fix, in order
Work through these in sequence. Most people are back under the limit by step 3.
1. Find the big attachments
Open Gmail on a computer — the web interface is far better for this than the app. In the search bar, type:
has:attachment larger:10MPress Enter. You get every message carrying more than 10MB of attachments, which in most accounts is a few hundred messages holding several gigabytes.
Click the checkbox at the top left to select the visible page, then click Select all conversations that match this search in the banner that appears. Review it briefly — then delete.
If that doesn’t yield enough, widen it to larger:5M.
2. Clear the obvious bulk categories
Two searches reliably free space without any judgement calls:
category:promotions older_than:1ycategory:social older_than:1yYear-old marketing email and social notifications are not something anyone returns to. Select all matches and delete.
3. Empty Trash and Spam — this is the step that counts
Everything you just deleted is still occupying your quota. It sits in Trash for 30 days.
- Click Trash in the left sidebar (you may need More to see it), then Empty Trash now.
- Click Spam, then Delete all spam messages now. Spam counts too, and a neglected spam folder is frequently a gigabyte on its own.
Until you do this, nothing you deleted has freed a single byte.
4. Check whether Gmail was even the problem
Go to one.google.com/storage. If Gmail is a small slice and Photos or Drive dominates, the attachment cleanup was never going to be enough.
Jump to finding what’s really using your 15GB and fix the service that’s actually responsible.
Confirm mail is flowing again
Don’t rely on the storage percentage — it updates slowly and will worry you unnecessarily.
Test it directly instead:
- Send an email from your Gmail account to yourself. If it sends without an error, sending is restored.
- Check it arrives. If it does, receiving is restored.
That’s the real test. The storage bar may still show 99% for hours afterwards while Google recalculates in the background, and that’s normal.
Tell people to resend
Messages that bounced while you were full are not queued anywhere. The sender got a delivery failure notice, so they know — but they may be waiting on you to say it’s fixed.
Mail servers that retry automatically generally keep trying for 48–72 hours, so anything sent in the last couple of days may still arrive by itself. Older than that, ask for a resend.
Stop it happening again
Three changes prevent the repeat:
- Turn off Google Photos backup for video, or switch backup quality to Storage saver. Video is the fastest-growing consumer of a shared 15GB by a wide margin.
- Set a quarterly reminder to run
larger:10Mand empty Trash. Two minutes, four times a year. - Unsubscribe rather than delete. Every newsletter you delete comes back next week. The unsubscribe link in the Gmail header takes one click.
If your account genuinely holds 15GB of things you need, upgrading to 100GB is the sensible answer. Clean up first, though — paying to store expired newsletters is a poor trade.