As email use becomes more ubiquitous in organisations, negative effects that stem from its use are becoming more prevalent. This study considers Email Overload as a negative product of email use. It explores the link between the personality traits of Self-esteem and Locus of Control and Email Overload. Furthermore it proposes a link between the level of perceived Email Overload and individual productivity in the work place. A sample of 239 respondents from an engineering organisation was collected for this study. Using Partial Least Squares (PLS) results suggest a strong negative relationship between Email Overload and productivity, indicating that as perceived Email Overload increases, a person’s productivity decreases. Weaker links were formed with Self-esteem and Locus of Control to Email Overload.