Gmail Not Working — Fix Login, Loading, and Sending Errors

Gmail not working can manifest in several ways: the inbox fails to load, login attempts are rejected with "wrong password" errors despite entering the correct credentials, emails get stuck in the Outbox, or the Gmail app on your phone stops syncing new messages. These issues can be caused by browser problems, Google server outages, account security locks, storage quota limits, or incorrect app settings.

Before diving into troubleshooting, check whether Gmail is down for everyone by visiting the Google Workspace Status Dashboard (workspace.google.com/status) or DownDetector. If Google's servers are experiencing an outage, no troubleshooting on your end will fix the issue — you simply need to wait for Google to resolve it. Server-side outages are usually resolved within a few hours.

If Gmail is working for others but not for you, the problem is on your end and the methods below will resolve it. These solutions cover Gmail on desktop browsers (Chrome, Firefox, Edge, Safari), the Gmail mobile app on Android and iOS, and third-party email clients like Outlook and Thunderbird that connect to Gmail via IMAP or POP.

⚡ Quick Fix

Clear your browser cache and cookies for mail.google.com, then try loading Gmail in an incognito/private window. If Gmail works in incognito, a browser extension is causing the conflict — disable extensions one by one to find the culprit.

Gmail fails to load, shows "Something went wrong" or "Oops... the system encountered a problem" error, or emails are stuck unsent

Method 1: Fix Gmail Not Loading in Browser

Step 1: Open Gmail in a private/incognito window (Ctrl+Shift+N in Chrome, Ctrl+Shift+P in Firefox). If Gmail loads correctly in incognito mode, the issue is caused by browser extensions, cached data, or cookies.

Step 2: Clear your browser cache and cookies specifically for Gmail. In Chrome, go to Settings > Privacy and security > Clear browsing data. Select "Cookies and other site data" and "Cached images and files." Set the time range to "All time" and click Clear data.

Step 3: Disable browser extensions one at a time to identify conflicts. Ad blockers (uBlock Origin, Adblock Plus), privacy extensions (Privacy Badger, Ghostery), and VPN extensions are the most common culprits. Disable each one, reload Gmail, and see if the issue resolves.

Step 4: Try loading Gmail's basic HTML version by going to mail.google.com/mail/?ui=html. If the basic version works but the standard version does not, your browser or internet connection may be too slow for the full Gmail interface. Update your browser to the latest version or switch to a supported browser (Chrome, Firefox, Edge, or Safari).

Tip: If Gmail is slow but eventually loads, try disabling Gmail Labs features. Go to Settings > See all settings > Advanced and disable any Labs you have enabled. Some Labs features can slow down Gmail significantly, especially on older computers.

Method 2: Fix Gmail Login Failures

Step 1: If Gmail rejects your password, first verify you are using the correct Google account email address. If you have multiple Google accounts, you may be trying to log into the wrong one.

Step 2: Go to accounts.google.com/signin/recovery to reset your password. Google will send a verification code to your recovery email or phone number. Follow the prompts to create a new password.

Step 3: If you have 2-Step Verification enabled and cannot receive the verification code (e.g., lost phone), use one of your backup codes. If you do not have backup codes, click "Try another way" on the login screen to use alternative verification methods like a recovery email.

Step 4: If your account was locked due to suspicious activity, Google may require additional identity verification. Go to accounts.google.com/signin/recovery and follow the account recovery process. This may take up to 72 hours for Google to review. Provide as much verification information as possible (previous passwords, account creation date, recovery contacts).

Method 3: Fix Gmail Not Sending Emails

Step 1: Check your Gmail storage quota. Gmail shares its 15 GB free storage with Google Drive and Google Photos. If your storage is full, Gmail cannot send or receive new emails. Check your usage at drive.google.com/settings.

Step 2: If storage is full, free up space by deleting large emails with attachments. In Gmail, search for has:attachment larger:10M to find emails with attachments over 10 MB. Delete unwanted ones and empty the Trash folder (Trash items still count toward your quota until permanently deleted).

Step 3: If individual emails fail to send, check the attachment size. Gmail limits attachments to 25 MB per email. For larger files, Gmail automatically offers to upload to Google Drive and share a link instead. If this process fails, manually upload the file to Drive and share the link.

Step 4: If emails to a specific recipient bounce back, check the bounce message for details. Common reasons include: the recipient's mailbox is full, the email address does not exist, or the recipient's mail server rejected the email. Verify the email address is correct and try sending a short text-only email without attachments to test.

Warning: Gmail has daily sending limits. Free Gmail accounts can send up to 500 emails per day, and Google Workspace accounts can send up to 2,000 emails per day. If you exceed this limit, Gmail will block sending for up to 24 hours. This is not a bug — it is a spam prevention measure. Wait 24 hours and your sending ability will restore automatically.

Method 4: Fix Gmail App Not Syncing on Mobile

Step 1: On Android, open the Gmail app, tap the three-line menu icon, scroll down, and tap Settings. Select your account and make sure Sync Gmail is toggled on. Also check Settings > Accounts > Google > [your account] in the phone's main settings and ensure Gmail sync is enabled.

Step 2: On iPhone/iPad, go to Settings > Mail > Accounts > Gmail and verify the Mail toggle is on. If you use the Gmail app instead of Apple Mail, open the Gmail app, tap your profile picture, and confirm the correct account is selected.

Step 3: Force stop the Gmail app and clear its cache. On Android: Settings > Apps > Gmail > Force Stop, then Storage > Clear Cache (do NOT clear data, as this removes your account). On iOS, swipe up on the Gmail app in the app switcher to close it, then reopen.

Step 4: If sync issues persist, remove the Google account from your phone and re-add it. On Android: Settings > Accounts > Google > Remove account. On iOS: Settings > Mail > Accounts > Gmail > Delete Account. Re-add the account and allow it to sync fully, which may take several minutes.

Why Does This Problem Happen?

Gmail issues fall into two broad categories: server-side and client-side. Server-side problems (Google outages, maintenance windows, infrastructure issues) affect millions of users simultaneously and resolve without user action. These are relatively rare — Google maintains 99.9% uptime for Gmail — but when they occur, they generate widespread reports on social media and DownDetector.

Client-side problems are far more common and include browser cache corruption that prevents the Gmail web interface from loading properly, browser extensions that interfere with Gmail's JavaScript, expired or incorrect cached credentials, full storage quotas that silently prevent sending and receiving, and mobile app sync settings that get toggled off during OS updates. Third-party email clients like Outlook and Thunderbird can also stop working with Gmail when Google tightens security requirements, as happened when Google disabled "Less Secure Apps" access and required OAuth 2.0 or app-specific passwords for all third-party connections.

Frequently Asked Questions

Visit the Google Workspace Status Dashboard at workspace.google.com/status. Green circles indicate all services are working. Orange or red indicators mean Gmail is experiencing issues. You can also check DownDetector (downdetector.com/status/gmail/) for real-time user reports of outages in your area.

This can happen if your Caps Lock is on, if your browser is auto-filling an old password, if your account was compromised and the password was changed, or if Google locked your account due to suspicious activity. Clear saved passwords in your browser, type the password manually, and check Caps Lock. If the issue persists, use the Google account recovery page to reset your password.

Emails you send may end up in recipients' spam folders if your email content triggers spam filters (excessive links, all-caps subject lines, certain keywords), if your Google account is new with no sending history, or if previous recipients marked your emails as spam. Emails you receive may go to your own spam folder if Gmail's AI classifier incorrectly identifies them — mark them as "Not spam" to train the filter.

Yes, but you need to enable IMAP in Gmail settings (Settings > See all settings > Forwarding and POP/IMAP > Enable IMAP). Since Google disabled "Less Secure Apps" access, you also need to use an App Password if you have 2-Step Verification enabled. Go to myaccount.google.com/apppasswords to generate a 16-character app password, and use that instead of your regular Google password in Outlook or Thunderbird.

Search for large emails: type "has:attachment larger:5M" in the Gmail search bar. Sort results and delete emails with large attachments you no longer need. Also empty Trash and Spam folders — these still count toward your 15 GB quota until permanently deleted. Check Google Drive and Google Photos as well, since they share the same storage pool.

Frequent logouts are usually caused by browser settings that clear cookies on exit, privacy extensions that block Google's session cookies, or security software that interferes with authentication tokens. Check your browser settings under Privacy > Cookies to ensure cookies from google.com are not being blocked or auto-deleted. Also check if your browser is set to delete cookies on exit.

Gmail allows attachments up to 25 MB per email. When sending, if your attachment exceeds 25 MB, Gmail will automatically upload it to Google Drive and include a download link in the email instead. For receiving, Gmail can accept attachments up to 50 MB. Files larger than these limits should be shared via Google Drive, Dropbox, or another file-sharing service.

If you recently deleted your Google account, you may be able to recover it within a limited time window. Go to accounts.google.com/signin/recovery, enter your email address, and follow the recovery steps. Google typically allows recovery within 2-3 weeks of deletion. After that period, the account and all associated data (emails, Drive files, Photos) are permanently deleted.

Yes. VPNs can trigger Google's security systems if your apparent location changes frequently, leading to login challenges, CAPTCHAs, or temporary account locks. Some VPN IP addresses are shared among many users and may be flagged by Google as suspicious. If you use a VPN, stick to a consistent server location and whitelist your Google account in the VPN's split tunneling settings.

Gmail Not Working: Fix Login Failures, Loading Issues, and Email Send Errors