How many male employees do not wish to receive e-mail promotion?
Male refers to Gender = 'M'; employees do not wish to receive any e-mail promotions are marked as EmailPromotion = 0
SELECT COUNT(T1.BusinessEntityID) FROM Employee AS T1 INNER JOIN Person AS T2 ON T1.BusinessEntityID = T2.BusinessEntityID WHERE T2.EmailPromotion = 0 AND T1.Gender = 'M'