can't configuer e-mail

still can't setup email

Turn on two-step verification for Google sign-in. See the Google help document Turn on 2-step verification for more details.
Generate an app-specific password for Lightroom. See the Google help document Sign in using App Passwords for more details.
In Lightroom, enter the app-specific password you generated and try to validate your Gmail account.

H there,

How are you trying to configure your email on the new computer? Which version of the application and Windows are you using? Do you see any error messages? 

Please check the below link and confirm if you are trying to set up the e-mail account setting in that method;

Link: https://helpx.adobe.com/lightroom-classic/help/prepare-send-or-post-photos.html#configure_email_account_settings_for_lightroom

Let us know how it goes.

Thanks.

Ranjisha