Email Notification of account activation after manually activating

I have turned off the automatic activation features in the settings of the form. I want to be able to manually activate accounts after verifying their licensing or school information. An email notification is not generated at this time when I activate accounts. I would like to trigger an automatic email notification to the user when the account is activated, but I can only see the activation under the user profile. Do you have any options for this workflow?

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