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10 Tech How-To

Gmail Not Working? How to Check Issues and Fix Them

Guide 10-30384 · Updated · Step by step

This guide helps you diagnose and resolve common Gmail problems, from login failures and sending errors to slow loading and missing emails. You’ll learn a systematic approach to identify the root cause and apply the right fix, whether it’s a browser issue, account setting, or a problem on Google’s side.

What You’ll Need

  • Access to your Gmail account credentials (email and password)
  • A web browser (Chrome, Firefox, Safari, Edge) or the Gmail app on your phone
  • Another device or browser (optional, for testing)
  • Your phone (for receiving verification codes, if needed)

Step-by-Step

  1. Check if Gmail is down globally. Before troubleshooting your own setup, visit a site like Downdetector or search on X (Twitter) for “Gmail down” to see if others are reporting issues. If there’s a widespread outage, the problem is on Google’s side—wait and try again later.
  2. Test your internet connection. Open another website (e.g., google.com) in the same browser. If it doesn’t load, restart your router or switch to a different network (like mobile data) and try Gmail again.
  3. Try a different browser or incognito window. Open Gmail in a private/incognito window (Ctrl+Shift+N on Windows, Cmd+Shift+N on Mac). If it works there, the issue is likely with your browser’s extensions or cache. In your normal browser, disable all extensions, then reload Gmail. If it works, re-enable extensions one by one to find the culprit.
  4. Clear your browser cache and cookies. Go to your browser’s settings, find privacy/security, and clear cached images and files, plus cookies for mail.google.com and accounts.google.com. Restart the browser and try again.
  5. Check your login credentials. If you can’t sign in, make sure Caps Lock is off and you’re typing the password correctly. Use the “Forgot password?” link to reset it if needed. If you have two-factor authentication enabled, check that you’re entering the correct code.
  6. Verify your account recovery info. If you’re locked out, go to the Google Account Recovery page (accounts.google.com/signin/recovery) and follow the prompts. Make sure your recovery email and phone number are up to date.
  7. Check your storage space. Go to drive.google.com and look at the storage bar on the left. If it’s full (over 15 GB), you can’t send or receive emails. Delete large attachments from your Drive or upgrade your storage.
  8. Test sending an email to yourself. If you can receive but not send, compose a message to your own address. If it fails, check your outgoing mail settings. In Gmail web, click the gear icon > Settings > Accounts and Import. Under “Send mail as,” verify your address is correct. For the Gmail app, check the SMTP settings (often smtp.gmail.com, port 587 or 465).
  9. Review your filters and blocked senders. If emails are missing, go to Settings > Filters and Blocked Addresses. Look for any filters that might be auto-deleting or archiving messages. Also check the “Spam” folder—if a legitimate email is there, mark it as “Not spam.”
  10. Update your Gmail app. If you’re on mobile, go to the App Store or Google Play Store and check for updates. Outdated apps often have bugs that are fixed in newer versions.
  11. Restart your device. A simple restart can clear temporary glitches in the operating system that might affect Gmail.
  12. Check for sync issues (mobile). In the Gmail app, pull down to refresh. If it doesn’t sync, go to Settings > Accounts > your account > Sync Gmail, and make sure it’s enabled. Also check that your device’s date and time are set to automatic—incorrect time can break SSL connections.

Common Mistakes

  • Ignoring browser extensions: Many people spend hours resetting passwords when the real issue is a single extension (like an ad blocker) interfering with Gmail’s scripts.
  • Not checking storage: A full Google Drive is a frequent cause of email bounce-backs, yet it’s often overlooked.
  • Using the wrong port for outgoing mail: If you’ve configured Gmail in another email client (Outlook, Thunderbird), using port 25 instead of 587 or 465 will fail to send.
  • Assuming emails are deleted: Gmail’s “Archive” feature removes emails from your inbox but doesn’t delete them. Check “All Mail” before assuming a message is lost.
  • Clearing the wrong cookies: Clearing all cookies can log you out of everything, but you only need to clear those for Google domains. This is a minor annoyance, not a real mistake, but it’s worth knowing.

Tips

  • Use Gmail’s built-in diagnostics: In Gmail web, click the gear icon > “See all settings” > “Troubleshooting” (at the bottom). This shows your connection status and recent errors.
  • Enable offline mode: If you have spotty internet, enable offline mode in Gmail settings (gear > Settings > Offline). This lets you read and compose emails that will send when you’re back online.
  • Set up a recovery email and phone: This is your lifeline if you ever get locked out. Do it now, even if you don’t need it.
  • Use Google’s official status page: For a quick check, visit google.com/appsstatus/dashboard/ to see if Gmail is experiencing any service disruption.
  • Keep your browser updated: Gmail requires modern browser features; an outdated browser can cause rendering issues or login problems.

Troubleshooting

If you’ve gone through the steps and still have issues:

  • If you can’t log in at all: Try the account recovery process. If you don’t have access to your recovery email/phone, you’ll need to answer security questions. If that fails, you may need to create a new account—this is a last resort.
  • If Gmail loads but is slow: Clear your browser cache, disable hardware acceleration in browser settings, and check if you have too many tabs open. Also try Gmail’s basic HTML view (gmail.com/mail/html) to see if it’s a rendering issue.
  • If you’re getting “Too many redirects” or “The page isn’t working”: This usually means cookies are blocked. Enable cookies for Google sites in your browser settings, then clear your cache and try again.
  • If you’re not receiving emails: Check the Spam folder, check filters, and verify that the sender’s address isn’t in your blocked list. Also check your forwarding settings—if you’ve set up forwarding, emails may be going elsewhere.
  • If you can’t send attachments: The attachment might be too large (Gmail’s limit is 25 MB). Upload it to Google Drive and share a link instead.
  • If the Gmail app keeps crashing: Clear the app’s cache (on Android: Settings > Apps > Gmail > Storage > Clear Cache; on iOS, you may need to delete and reinstall the app).

Frequently Asked Questions

Why is Gmail not loading even though my internet is fine?

This is often due to browser cache, extensions, or DNS issues. Try a different browser or incognito mode. If that works, clear your cache and disable extensions. If not, try flushing your DNS (on Windows: ipconfig /flushdns in Command Prompt).

How do I know if Gmail is down for everyone or just me?

Check a service status site like Downdetector or Google’s own Apps Status Dashboard. If there’s a reported outage, it’s not you. If the status says normal, the issue is on your end.

What should I do if I forgot my Gmail password?

Go to the Gmail login page, click “Forgot password?”, and follow the prompts. You’ll be asked to verify your identity via a recovery email, phone number, or security questions. If you have none of these, you may not be able to recover the account.

Why do my emails go to spam?

This can happen if your emails are being flagged by the recipient’s spam filter. Common reasons include using too many links, sending large attachments, or having a new domain. To reduce spam flags, ask recipients to mark your emails as “Not spam” and add you to their contacts.

Can I recover a deleted email?

Yes, for up to 30 days. Go to the Trash (Bin) folder, select the email, and click “Move to Inbox” or “Restore.” After 30 days, it’s permanently deleted and cannot be recovered.

Why is my Gmail storage full?

Your Gmail storage is shared with Google Drive and Google Photos. Large attachments in emails count toward your 15 GB limit. To free up space, delete large emails (search for “has:attachment larger:10M”), empty the Trash, or clean up your Drive.

Related

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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