[mailpoet_pamailpoet_unsubscribe_confirmation_page]

add_filter( 'mailpoet_unsubscribe_confirmation_page', 'mp_modify_unsubscribe_confirmation_page', 10, 2); function mp_modify_unsubscribe_confirmation_page( $HTML, $unsubscribeUrl ) { $HTML = '

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'; $HTML .= 'Haz clic aquí para cancelar tu suscripción.'; $HTML .= '

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'; return $HTML; }