This site is not affiliated with Gmail; this is an independent explanation.
Gmail not working can mean several different things: new mail does not arrive, messages stay in the outbox, the app says it is waiting for sync, notifications come hours late or never, or you cannot sign in at all. It matters because email often holds your bank alerts, job replies and account recovery codes.
Each symptom has its own cause, so the quickest way is to match what you see to the fix. The notes below cover the Android app, the iPhone app and a browser on a laptop, and they include the special cases people search for most, such as notifications that do not open the mail when tapped and recovery codes by text message that never arrive.
Common causes
1Sync is off for the account
How to tellNew mail shows only when you open the app and pull down, or says waiting for sync
What fixes itTurn on account sync and background data
2Storage is full
How to tellCannot receive or send, with a warning about running out of space
What fixes itDelete big attachments and empty spam and bin
3Notifications blocked or battery limited
How to tellMail arrives silently or late; tapping an alert does not open the message
What fixes itAllow notifications and set the app to unrestricted battery use
4Weak internet
How to tellOutbox keeps mail, attachments fail to load
What fixes itChange network and press send again
5Old app or old system
How to tellCrashes, blank inbox or odd layout
What fixes itInstall fresh app and system builds
6Sign-in or password change
How to tellAsks you to sign in again, or says the password is wrong
What fixes itRe-add the account with the current password
7Attachment too large or wrong address
How to tellMessage returns or will not leave the outbox
What fixes itShrink the file or check the address
How to fix it, step by step
Open Gmail in a browser first
Sign in on the website. If your mail loads there, the account itself is fine and the trouble sits in the app or phone. If you cannot sign in even there, jump to the password and recovery steps further down.
Switch sync on
On Android, open Settings, then Accounts, choose your Gmail account and make sure sync for mail is on. Also check that background data is allowed for the app. In the app's own settings, confirm that sync is enabled for the account.
Pull to refresh and check the outbox
Drag the inbox down to refresh. Look in the Outbox or the Sent label for anything stuck. A message that sits there usually has a bad address, a large file or no connection.
Free storage in the account
Your mail, drive files and photos can share one storage allowance. Delete old messages with big attachments, then empty Spam and Bin, since those still count until emptied. The phone itself also needs free space.
Fix notifications
In phone settings, open the notification page for the app and allow alerts. Then allow unrestricted battery use, because power saving tools stop background checks. Inside the app, choose which labels notify you. If tapping an alert does nothing, get the newest build and reboot.
Update and reboot
Get the newest app build from your store, then reboot the phone. This clears stuck sync tasks and solves many blank inbox cases.
Sign the account out of the phone and back in
In phone settings, delete the account under Accounts, reboot, then sign in with the correct password. Your mail is stored online, so removing the account from the phone does not delete messages.
Clear the app cache
Only after the earlier steps: on Android, go to the Storage screen for Gmail and use Clear cache. On iPhone, log out and back in, or reinstall.
Gmail not working on Android versus iPhone
Android ties mail sync to the phone's account settings, so problems often live under Accounts and battery management. On iPhone, background refresh and notification permission are set per app in Settings, and fetch settings decide how often mail is checked. If you use the app on both, check each one's permissions separately. A good test is to send yourself a message and watch how long it takes to arrive.
You get a bank alert by email, but the phone never buzzed. Open the inbox: the mail is there. The notification setting or battery limit is the culprit, not the service. Allow notifications and unrestricted battery use for the app.
Gmail password recovery via SMS not working
If the recovery code does not arrive by text, check phone signal, that the number saved for recovery is still the one in your phone, and that your SIM can receive messages. Messages can be delayed by network trouble, so wait a few minutes before asking for another code. If the SIM is the problem, read SIM card not working. Try the other recovery options offered on the screen, and use a device you have signed in on before.
Never share a code with anyone who calls or messages you. Official recovery never asks you to read the code out to a person. Only use the real sign-in page, and ignore texts claiming your account will be closed.
How to tell if Gmail is down for everyone
| Check | If it fails | Meaning |
|---|---|---|
| Website on a laptop | Also broken | Possible service issue or sign-in fault |
| Friend's phone | Also broken | Probably the service |
| Other websites | Also slow | Your internet |
| Only your phone app | Broken | App, sync or battery settings |
When the connection itself is the issue, start with internet not working. Gmail not working today for many people at once is rare and usually short.
Gmail tab notification and tap notification not working
On a computer, browser alerts only appear if the site has permission and the browser is allowed to show notifications in the system settings. Click the lock icon beside the web address, allow notifications, and make sure focus or do not disturb modes are off. A tab left open for days can also stop updating, so reload it. Wider app trouble is handled on apps and websites not working.
Frequently asked questions
Why is my Gmail not working on my phone?
Check that sync is on, storage is not full, the app is current and the internet works. Then check notifications and battery limits if mail arrives late.
Why is Gmail not working today?
A real outage is rare. Open the website, ask a friend to check theirs, and look at other sites. Most cases are sync, storage or connection problems on your side.
Why are my Gmail app notifications not working?
Notification permission or battery restriction is the usual cause. Allow alerts, set unrestricted battery use, and check which labels are set to notify.
Why does Gmail tap notification not open the email?
Often the cause is an outdated build or a frozen background task. Install updates, reboot, and make sure the notification is not from a removed account.
Why is Gmail password recovery via SMS not working?
The code may be delayed, or the saved number may be old or the SIM unable to receive texts. Wait a few minutes, check the SIM, and try other recovery options.
Why does Gmail say waiting for sync?
Sync may be turned off, background data limited or the connection weak. Enable account sync, allow background data and try another network.