The instructions for Norton Safe Mail states: "Before we can start flagging potentially suspicious emails, we need your permission. Sign in to [email account] and check the last two boxes on the permission dialog. Then click "Continue."
I cannot find the appropriate "permission dialogue."
Click Sign in with Google, then sign in to your Gmail account.
To configure your mailbox to work with Norton Safe Email, tick the boxes next to See and edit your email labels and Read, compose, and send emails from your Gmail account, then click Continue.
On the confirmation screen, you can click on Open Norton Safe Email.
Message: "We didn't get your permission" while configuring your account ›
This error occurs when the required permission is not allowed when adding your email accounts.
You need to click on Edit Permissions and enable the last two dialog boxes (See and edit your emails, Read Compose, and send emails from your Gmail account).