Get rid of any third-party apps From Gmail when apps you don’t trust get into your emails, contacts, or calendar without your permission. You see security alerts like “Running a suspicious sign-in” or “New device signed in,” or apps you don’t know show up in your Google Account access. An old email client, an app you haven’t used in years, or a fake scam can let someone in who shouldn’t. This guide shows you how to safely use Google’s approved tools to block all third-party apps and APIs. Third-Party Apps From Gmail.

Quick Fix (1 minute)
Use a browser to go to myaccount.google.com/permissions.
Sign in if asked, then scroll down until you see Third-party apps that can access your account.
If you don’t know or use an app, click on it.
Choose “Remove Access” and then “Confirm Removal.”
To protect your account when you remove third-party apps, do this for all apps that seem sketchy or aren’t being used.
From Gmail. Third-Party Apps From Gmail.
List of Symptoms
- Google security alert: Sign-in that looks suspicious was blocked or a new device signed in.
- Getting read, sent, or removed emails without your help.
- Permissions lists apps that you don’t remember giving permission to.
- Spam sent from your account or people who get fake emails “from you.”
- calendar calls or changes to contacts from people you don’t know.
- Warning: You didn’t set less safe app access, but it was still on.
Summary of Troubleshooting (Fast Diagnosis)
Signs Most Likely Cause Best Way to Fix
Received a security alert: Unknown third-party app access; Fix Method 1: Unknown app; Old permission or phishing scam; Fix Method 2:
Your emails were sent without your permission; the app has “Send As” access.Fix: You can’t get rid of an app using Methods 3 and 4.Needed by a live service or SSO Fix Method 5: App shows up again after being deletedFix Method 6: This is because you’re still signed in to the app. Third-Party Apps From Gmail.
When you get rid of third-party apps, You can take away OAuth keys that apps use to get into your account from Gmail. You may have clicked “Sign in with Google” for a game, email client, calendar app, or CRM tool a long time ago. That app was given permission to read emails, send messages, and handle contacts. A lot of people forget to give these permissions. Access can be misused by abandoned apps, startups that are bought, or services that have been hacked.
Google’s OAuth system is safe, but giving untrusted apps broad rights like “Full Gmail access” is dangerous. Phishing sites that look like real apps can also get people to give them access. Third-Party Apps From Gmail.
How to Remove Third-Party Apps from Gmail (Fix Method 1): Check All Third-Party Apps (Office Google Account Permissions)
How this fixes it
Displays all apps so you can get rid of third-party ones It lets you know which apps have access to your Gmail account so you can remove third-party apps from Gmail in a planned way. Third-Party Apps From Gmail.
- Go to my.google.com/permissions and click on it.
- Use 2-Step Verification if it’s turned on and your Gmail passwords to log in.
- To get to Third-party apps with account access, scroll down.
- Look over the list. Each app has its name, the date it was given, and a list of permissions, such as “Read, compose, send, and permanently delete your email.”
- Click on any app to see its full list of permissions and the date it was last used.
How to make sure it worked
You can see the whole list of apps. Safe apps are ones you already know, like your email client or calendar sync tool. Getting rid of unknown or old apps is a good idea.
If it doesn’t work
See if the page loads in a new window or a different browser. Click on Fix Method 2.
Fix Method 2: Get rid of any third-party apps that you don’t trust or use.
How this fixes it
Important step to get rid of third-party apps When you remove third-party apps from your Gmail account, they can’t access the information you send or receive. This keeps your account safe. From Gmail. Third-Party Apps From Gmail.
- If you want to get rid of an app, go to myaccount.google.com/permissions and click on it.
- Check to see what rights it has, like “Read, write, and send email” or “Manage your calendars.”
- Click on Take Access Away.
- In the pop-up, click OK or Remove to confirm.
- Do this for every app that seems sketchy or isn’t being used.
How to make sure it worked
The app is no longer in your list of allowed apps. It can no longer get to your calendar, emails, or Gmail.
If it doesn’t work
If you can’t get rid of the app, it might be because a Google service needs it. Click on Fix Method 5.
Fix Method 3: Making sure you don’t have “Send As” permissions is an important step to get rid of third-party apps from Gmail.
How this fixes it
Important to do when you delete third-party apps from your Gmail account; stops apps from writing emails as you even after you delete them. Third-Party Apps From Gmail.
- To see all of your options, open Gmail and click on the gear icon (▻️).
- Scroll down to the Import and Accounts tab.
- Check Send mail as for names or apps that you didn’t add.
- If you see a “Send as” address that looks fishy or isn’t being used, click “Delete.”
- Verify the erasure.
How to make sure it worked
Each of you has their own email address left. No one else can send from your account besides you.
If it doesn’t work
It is possible to find auto-forwarding rules on the Filters and Blocked Addresses tab. Click on Fix Method 4.
Fix Method 4: Turn off suspicious filters and auto-forwarding
How this fixes it
It’s important to take this important security step after removing third-party apps from Gmail because it stops apps from sending your emails to other addresses. Third-Party Apps From Gmail.
- In Gmail, go to Settings and click on the POP/IMAP tab.
- Check to see if emails are being sent to a different address under Forwarding.
- You can turn off forwarding if you see an address you didn’t add.
- Look over all of the current filters by going to the Filters and Blocked Addresses tab.
- Get rid of any filters you didn’t make that automatically forward, delete, or store emails.
How to make sure it worked
You can no longer forward messages, and only your personal filters will work. No one else can see your emails.
If it doesn’t work
If you think someone else knows your Gmail password, you should change it. Click on Fix Method 6.
Fix Method 5: Take care of apps that won’t go away (needed by Active Services)
How this fixes it
It fixes problems that happen when you try to remove third-party apps from Gmail. It tells you why some apps can’t be removed and what to do if you need to remove them but they’re locked. Third-Party Apps From Gmail.
- If you try to remove an app and it says “This app is required” or doesn’t work, make sure it’s not part of an active service like work SSO, school sign-in, or an organization-managed account.
- To get rid of controlled apps from work or school accounts, talk to your IT administrator.
- When you’re done with personal apps, log out of the outside service first.
- After logging out, wait 5 minutes, then go to myaccount.google.com/rights again and remove the permissions again.
How to make sure it worked
After you log out of the outside service, the app will be removed properly.
If it doesn’t work
Go to myaccount.google.com/security-checkup and use Google’s Security Checkup. Click on Fix Method 7.
Fix Method 6: Make a new password and turn on two-step verification to stop re-authorization.
How this fixes it
Last layer of protection after you remove third-party apps from Gmail; protects your account so that no one else can get in without your permission. Third-Party Apps From Gmail.
- To get to security, go to myaccount.google.com.
- Click Password and sign in again if asked under Signing in to Google.
- Type in a new, strong password with at least 12 characters and a mix of letters, numbers, and symbols.
- If it’s not already on, scroll down and turn on 2-Step Verification.
- Finish setting up by adding your phone number or an authenticator app.
How to make sure it worked
With the new password, you can log in. The old password no longer works for apps that used it to get into your account.
If it doesn’t work
Check the page for recent security behavior to see if anyone signed in without permission. Click on Fix Method 7.
7th Way to Fix It: Run the Google Security Checkup (Official Full Audit).
How this fixes it
Do a full check to get rid of third-party apps. From Gmail—full check for all security problems, making sure you Get Rid Of Third-Party Apps From Gmail and keep your account safe.
- Go to my.google.com/security-checkup.
- When you get to “Your devices,” “Recent security events,” “Third-party access,” or “2-Step Verification,” sign in and do what it says.
- Take away any gadgets that aren’t recognized from “Your devices.”
- If you still see any strange apps under “Third-party access,” get rid of them.
- Do everything that was suggested.
How to make sure it worked
All of the green checkmarks are shown in Security Checkup. Getting rid of Third-Party Apps From Gmail will fully protect your account.
If it doesn’t work
Support from Google can be reached at support.google.com/accounts/answer/6294825.
Don’t let it happen again
When you get rid of third-party apps, To stay safe, go to myaccount.google.com/permissions from Gmail every three to six months and look over the third-party app access. Third-Party Apps From Gmail.
Q&A
Why should I get rid of apps that aren’t made by Gmail?
Other apps can get to your calendar, contacts, and texts. Security risks rise when apps are old or seem sketchy.
What can I do to see which apps can get into my Gmail?
Sign in to your Google account at myaccount.google.com/permissions and scroll down until you see “Third-party apps with account access.”
If I delete an app, will my emails and other info be lost?
Not at all. Removing third-party access will only stop the app from getting your Gmail from now on.
Can I get rid of Google’s own apps and services?
Core Google services like Gmail, Drive, and Photos can’t be deleted.
What happens after I block entry to a suspicious app?
The app loses access to your Gmail right away.
How often should I check my access to third-party apps?
Check it every three to six months or whenever you get a security alert.
After I delete third-party apps, can they still send emails from my account?
Not at all. The app can’t send emails, read messages, or get to your contacts after it’s been deleted.
Official References
- Google Account Permissions (Third-party apps)
- Google Support: Remove third-party account
access - Google Security Checkup
- Google Account Help Center
Visit https://truefixguides.com/ for more.
Written & Tested by: Antoine Lamine
Lead Systems Administrator