Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @Avanquest i have unsubscribed 3 times from your spam emails still coming? STOP THE EMAILS #avanquest #software
This tweet contains emotions: 
anger, disgust