recovery_mode_email

Dans class-wp-recovery-mode-email-service.php

    $email = apply_filters( 'recovery_mode_email', $email, $url );

    $sent = wp_mail(
        $email['to'],
        wp_specialchars_decode( sprintf( $email['subject'], $blogname ) ),
        $email['message'],
        $email['headers']
    );

    if ( $switched_locale ) {
        restore_previous_locale();
    }

    return $sent;
}

/**
 * Gets the email address to send the recovery mode link to.
 *
 * @since 5.2.0
 *
 * @return string Email address to send recovery mode link to.
 */
private function get_recovery_mode_email_address() {
    if ( defined( 'RECOVERY_MODE_EMAIL' ) && is_email( RECOVERY_MODE_EMAIL ) ) {
        return RECOVERY_MODE_EMAIL;
    }

    return get_option( 'admin_email' );
}

On peut le définir dans WP_CONFIG.PHP ou dans le theme :

add_filter( 'recovery_mode_email', function( $email_data ) {
     $email_data['to'] = 'user@example.com';
     return $email_data;
 });