How to fix the “Server denied POP3 access” error on Gmail

This tutorial will show you step by step how to fix the “Server denied POP3 access for the given username and password” error on Gmail when trying to add another Gmail account.

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“Server denied POP3 access for the given username and password” error on Gmail.com

Gmail allows you to check email from other email accounts.

But:

If you try to add another Gmail email address to your Gmail account, you may receive the following error message: Server denied POP3 access for the given username and password.

Server denied POP3 access for the given username and password on Gmail.com

And when you click on the Show error details link you will see the following message: Server returned error: "[AUTH] Application-specific password required: https://support.google.com/accounts/answer/185833".

Fortunately, you can solve this problem with a few changes in the settings.

Fix the “Server denied POP3 access” error on Gmail (short explanation)

Note: If the steps below don't work, then you should first sign out of all your Google (Gmail) accounts and then follow the steps below again.

  1. Sign in to the Gmail account you want to add to your account (the one you are trying to fetch mail from).
  2. Open settings.
  3. Click on the Forwarding and POP/IMAP tab.
  4. In the POP download section, you select Enable POP for all mail.
  5. At the bottom, you click on Save Changes.

Now try again to add the account to your main account.

Note: If the account you want to add uses two-step verification (two-factor authentication), then you will also need to create a new app password for that account and use that password to add the account to your other account. How that works, I will show you in the steps below.

  1. Open the settings of the Google account of the Gmail account you want to add to your account (the one you are trying to fetch mail from).
  2. In the left menu, you click on Security.
  3. In the Signing in to Google section, you click on App passwords.
  4. Enter your password to continue.
  5. Create a new app password and use that password to add the account to your main account.

Fix the “Server denied POP3 access” error on Gmail (step-by-step)

Note: If the steps below don't work, then you should first sign out of all your Google (Gmail) accounts and then follow the steps below again.

1. Sign in to the Gmail account you want to add to your account (the one you are trying to fetch mail from).

2. Click on the gear button in the top right corner.

Gmail settings button

3. Click on Settings.

Open Gmail settings

4. Click on the Forwarding and POP/IMAP tab located at the top of the settings section.

Gmail Forwarding and POP/IMAP tab

5. In the POP download section, you select Enable POP for all mail.

Enable POP for all mail option in Gmail

6. At the bottom, you click on the Save Changes button.

Now try again to add the account to your main account.

Note: If the account you want to add uses two-step verification (two-factor authentication), then you will also need to create a new app password for that account and use that password to add the account to your other account. How that works, I will show you in the steps below.

Create a new app pasword

1. Sign in to the Gmail account you want to add to your account (the one you are trying to fetch mail from).

2. In the right top corner, you click on the profile picture of your Google account.

3. Click on the Google Account button.

Open Google account settings

4. In the left menu, you click on Security.

Google account security settings

5. In the Signing in to Google section, you click on App passwords.

Google account app passwords

6. Enter your password and click on the Next button to continue.

7. Click on Select app and then click on Other (Custom name).

Create new app password for Google account

8. Enter Gmail.

9. Click on the Generate button.

Create new app password for Google account

Google will generate a new app password and you can use this password to add the account to your main account.


Reference:

Google.com: Check emails from other accounts