One of these:
SELECT
*
FROM
theTable t1
WHERE
NOT EXISTS
(
SELECT
*
FROM
theTable t2
WHERE
t2.SenderId = t1.SenderId
AND t2.SenderAdditionalCode = 3
);
SELECT
SenderId
FROM
theTable
GROUP BY
SenderId
HAVING
SUM(CASE WHEN SenderAdditionalCode = 3 THEN 1 ELSE 0 END) = 0
