I tried all of these steps, multiple times, without resolution.  

First, I tried with existing gmail settings. Then I tried deleting my email, updating QB, and reinstalling my email. Problem continues. The following sequence has been followed, with 2-step verification on, reaching a deadend (no further screens offered) at steps 6 and 7.  See atached screen capture in which "steps on how to resolve this" is inactive.

Scenario 1: Change the current Gmail account to use the secure webmail

1. Turn on 2-step verification for your Google account.
2. In QuickBooks, select Edit and then select Preferences.
3. Select Send Forms.
4. Select Web Mail.
5. Select your Gmail User Id and Edit.
6. Select Use enhanced security and select OK. We’ll also ask you to sign in to your Intuit account to complete the process.
7. Your Gmail sign-in page will display. Sign in and grant Intuit access.