Safe Email using AT&T?

What app specific password is required for Safe Email? I’ve used a Secure Mail Key, my Norton password and my ATT Email password. Mobile and Desktop give me the same error, bad email or password, try again.

Please review:
Set up Norton Safe Email
Fix Norton Safe Email Product Errors
Supported Email Providers monitored by Norton Safe Email

Please share your progress.

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Hello @Priscilla_L_Tharp