Cannot add account to check mail from other accounts


You are unable to add another Google Workspace account to the setting Check mail from other accounts when using an account without 2SV due to the error: Server denied POP3 access to given username and password.


  • Gmail web interface 


  1. Open a new incognito window and go to Google Mail.
  2. Sign in to the account you are trying to add in Check mail from other accounts.
  3. Go to Less secure apps access and make sure Less secure apps is enabled. 
  4. In the same incognito window, open a new tab.
  5. Go to Display Unlock Captcha and click Continue
  6. Try again to add the account in Check mail from other account settings.
  7. Make sure you are using the following settings:
  • Username: Full email address of the account you are trying to add Password: Password of the account you are trying to add
  • POP Server:
  • Port: 995
  • Leave a copy of the retrieved message on the server: Unchecked
  • Always use a secure connection (SSL) when retrieving mail: Checked


This is caused due to Less secure apps being turned off when an account does not have 2SV.