captureMandate.requestEmail {#ctp-cc-capture-req-email}
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`false`: No email address is shown in the UI. If you are using `Click to Pay`, this email address is used to find the cardholder's `Click to Pay` account and it appears in the UI when requestEmail is set to `false`.  
`true`: The email address is shown and captured in the UI. If you are using `Click to Pay`, this email address is used to find the cardholder's `Click to Pay` account.