Dilema:Spam Filtering (Jan.21)

I am the network administrator for a rather large company. One day, I got a helpdesk request from a staff member asking for and email to get released. It was my best friend's wife. I know her and I quickly attend to the problem. When I check a email, I usually have to open and read the email to confirm it is not spam. So, I opened and read it as usual. It was not a Spam email but it was an email from her adultery. I know the company policy is very strict and it is not permitted to reveal the contents of confidential email of staff members. If I tell this to my friend and someone found that I reveal the contents of the email, I will lose my job. I have a young family and I need my job to support them.

What do you do???

First, I will talk with the wife of my very good friend and tell her that I have read the secret e-mail. Then, I will ask her whether her husband knows her affair. Also, I want to know if he feels sorry for her husband. If she does not care her affair, I will be angry and I will tell her she should stop affair. Maybe I will tell my friend. If she feels sorry for her husband and promise that she never affairs, I won't do nothing and help her and my friend.
In my group, there were some opinion. One doesn't want to do nothing. One said that she will ask her boss what they should do. One and I will do the same things, to talk to my friend's wife. Two said that they will find other evidence. For example, taking picture of the affair. After discussing, we made a consensus: First, talk to his wife. If she is not going to stop adultery, do nothing. It is not easy for us to correct the sordid relationship...