add_filter( 'notification/carrier/email/recipients', function( $recipients ) {

    $exclude_emails = [
        'email1@example.com',
        'email2@example.com',
    ];

    foreach ( $exclude_emails as $email ) {
        if ( false !== ( $key = array_search( $email, $recipients ) ) ) {
            unset( $recipients[ $key ] );
        }
    }

    return $recipients;

}, 10, 1 );