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disable verification mail for api in auth0

I currently have two api in auth0, one needs that when someone registers confirm or verify your mail, but the second api, you do not need this option to verify email. I see that in the mail section-> templatesand verification mail is active, but if I disable it, the mail will never arrive to verified the user of the first api, but if I leave it active, an email will arrive to verify mail to the user of the api2. My idea is to create a rule for this case but I do not know how and I do not find documentation