connecting with gmail

[snake]

I have switched to a new domain and am having issues connecting to Gmail.

On the old domain I was using an app password, which was working fine.
But on the new domain it won't work, just says "The Mail Import test failed: last request failed: [AUTH] Username and password not accepted."

I have reset it many times, same issue. The app password is correct.

So I tried setting up Oauth, but the docs seem to be outdated, as the setup is more complex now and you have to setup more scopes.
I added the scopes mentioned in the docs as well as the gmail API related scopes as well. But this also will not connect.

The Mail Import test failed: Unauthorized. Error: invalid_client.

I setup the Google Cloud project using my workspace admin account, as opposed to the support@ USER that is being used for whmcs tickets.
I also added the support@ user as owner of the project in case that was an issue, still same error.

 

any help appreciated.

[WHMCS John]

Hi @snake,

Google no-longer permits the use of basic password authentication or app passwords. So you will need to use OAuth2 to import emails.

For more information please see: https://help.whmcs.com/m/troubleshooting/l/1938069-troubleshooting-a-last-request-failed-auth-username-and-password-not-accepted-error-with-gmail

 

An invalid_client error typically has two potential causes:

1. The Client ID is invalid. Correct the Client ID value entered into the WHMCS Mail Provider configuration modal and click the Connect button again.

Ensure the OAuth credentials are correctly created per this guide: https://docs.whmcs.com/support/support-tutorials/set-up-email-importing-google/

The scopes you need are:

• userinfo.email
• userinfo.profile
• openid

2. The Callback URL has not been entered into the "Authorized redirect URIs" section in the Google Application on the Google Cloud Developer site.