Gmail Notifications Not Working: How to Fix It
In short: Gmail notifications stop when the app’s notification permission is off, when battery optimization kills background sync or when the Gmail app’s own notification setting is set to None. Set Gmail notifications to All in the app, exclude Gmail from battery optimization and confirm sync is on for the account.
Why Gmail notifications stop, even when the settings look right
A missed notification is rarely just an inconvenience. It is the OTP that expired before you saw it, the reply from a recruiter you answered a day late, the delivery you missed because the alert never came. You only find out when you happen to open the app. By then the moment has passed.
What makes this maddening is that people open every notification screen, see everything switched on and still get nothing. That is because the switches are not usually the problem. On a phone, the most common cause is battery optimization: to save power, the system stops Gmail refreshing in the background, so no new mail is detected and no alert fires. It is not a notification setting, so no amount of toggling notification settings fixes it. The other usual causes are:
- The Gmail app’s own per-account notification level is set to None rather than All.
- Sync is turned off for the account, so the app never pulls new mail.
- A Focus mode, Do Not Disturb or a VPN is silencing or delaying alerts.
- The system-level notification permission for Gmail is switched off.
Backup and Recovery Specialist, Corbett Software
“When someone tells me every setting is on and Gmail is still silent, I stop looking at notification menus and go straight to the battery screen. Nine times out of ten the phone has quietly put Gmail to sleep to save power. Set it to unrestricted and the alerts come back.”
Fix it on Android
Work through these in order. The first two cover the settings, the battery step below covers the invisible cause.
- Turn on the system permission. Settings → Apps → Gmail → Notifications, then switch All Gmail notifications on.
- Set the in-app level to All. Open Gmail → tap your profile → Settings → pick the account → Notifications → choose All. Under Manage notifications confirm the channel is on.
- Turn sync on. In the same account settings, tick Sync Gmail. If sync is off the app never checks for mail.
- Check per label. If only some mail is silent, open Settings → account → Manage labels and set notifications for Inbox or the label you care about.
- Clear Do Not Disturb. Settings → Sound → Do Not Disturb, then make sure Gmail or your inbox is not being silenced.
If every account is affected the moment you set them up, the cause is almost always the battery step next.
The hidden cause: battery optimization
This is the fix most people never reach. It solves the most cases. When Android restricts Gmail in the background, mail only syncs when you open the app, so notifications either never arrive or arrive in a late batch. Set Gmail to run without restriction. The path differs by manufacturer, which is exactly why generic guides miss it:
- Stock Android (Pixel): Settings → Apps → Gmail → App battery usage → Unrestricted.
- Samsung (One UI): Settings → Apps → Gmail → Battery → Unrestricted, then Settings → Battery → Background usage limits and remove Gmail from Sleeping apps and Deep sleeping apps.
- Xiaomi (HyperOS or MIUI): Settings → Apps → Manage apps → Gmail, set Battery saver to No restrictions and turn Autostart on.
- OnePlus (OxygenOS): Settings → Battery → Battery optimization → Gmail → Don’t optimize, then allow background activity in the app info screen.
Fix it on iPhone
iPhone hides the same problem in three places. Check them in this order:
- Allow notifications. Settings → Notifications → Gmail → turn on Allow Notifications, then enable Lock Screen, Banners and Sounds.
- Turn off Low Power Mode. Settings → Battery. Low Power Mode pauses background fetch, which stops alerts. Turn it off when you need real-time mail.
- Enable Background App Refresh. Settings → General → Background App Refresh, then make sure Gmail is on.
- Check Focus and Do Not Disturb. Settings → Focus. A Focus or a sleep schedule can hold Gmail alerts silently. Allow Gmail as an exception or simply turn the Focus off.
- Confirm the in-app level. Open Gmail → Settings → account → Notifications → set to All.
Fix it on desktop and Chrome
Desktop alerts need three layers switched on. Missing any one keeps you silent:
- Gmail itself. Open Gmail → Settings gear → See all settings → General → Desktop notifications → select New mail notifications on, then scroll down and click Save Changes.
- The browser. In Chrome, Settings → Privacy and security → Site settings → Notifications, then confirm mail.google.com is allowed, not blocked.
- The operating system. On Windows, Settings → System → Notifications and turn Chrome on. On macOS, System Settings → Notifications → your browser → Allow Notifications.
Notifications arrive, but late
A different but related problem: alerts do come, only minutes or hours after the email, often in a batch when you unlock the phone. That is background sync being throttled rather than blocked. The fix is the same battery step above, set Gmail to unrestricted so it can sync the moment mail arrives. On iPhone, turning off Low Power Mode and enabling Background App Refresh does the same job. If this only started after a phone update, a new power-saving default is almost always the reason.
Back up your Gmail before you reinstall
Some of the fixes above clear the app data or reinstall Gmail. That is safe for mail stored on Google’s servers, but a local copy means a stray tap during setup never costs you anything. Important mail stays readable even when notifications are the least of your worries.
The Corbett Gmail Backup Tool saves your Gmail messages, contacts and calendars to your computer as PST, PDF, MBOX or EML, with the folder structure and attachments intact. A free demo edition runs on every edition of Windows.
Frequently asked questions
Why am I not getting Gmail notifications on Android?
Usually because battery optimization has put Gmail to sleep in the background, so it only syncs when you open it. Set Gmail to unrestricted battery use, confirm sync is on and set the in-app notification level to All.
Why is my iPhone not showing Gmail notifications?
Check three things: Allow Notifications for Gmail under Settings, Background App Refresh turned on and Low Power Mode turned off. A Focus or Do Not Disturb schedule can also hold alerts silently.
Why do my Gmail notifications arrive late?
Late alerts are background sync being throttled to save power. The mail is fetched only when you open the app, so the alert lands in a batch. Setting Gmail to unrestricted battery use restores real-time delivery. On iPhone, turning off Low Power Mode does the same.
Gmail notifications work on one account but not the other. Why?
The notification level is set per account in the Gmail app. Open Settings, pick the account that is silent and set its Notifications to All. Each account you add has its own switch.
Why did Gmail notifications suddenly stop?
Most often a phone or app update reset a power-saving default. Sometimes Do Not Disturb was simply left on. Re-check battery optimization and Focus settings first, since those are what updates tend to change.
Why is there no notification sound even though the banner shows?
The notification channel is set to silent. Open Settings → Apps → Gmail → Notifications, tap the mail category and set Sound or Make sound and pop on screen, then confirm the phone is not on vibrate or Do Not Disturb.