E-mail

I just received an outwardly raciest e-mail from someone I know who claims to be a Christian, He prays before every meal even at public events. I am fit to be tied and want to respond with guns a blazing. My wife pleaded with me not to respond because she can’t stand controversy. I am going to listen to her but it makes my stomach hurt and I am sure I will not sleep tonight. I am a fighter and it goes against my grain to keep silent and let this go by. What the heck is wrong with people?