Summarize the following:
For example, avoid forwarding an email containing a secret, especially if the person you're e-mailing doesn't want you to. Doing so can possibly cause the recipient to lose trust in you, and you could possibly have your relationship messed up. You certainly do not want that to happen. If you feel tempted to do so, put yourself in the other person's shoes, and think about how you would feel if that person spread rumors about you. For example, if your friend has a reputation for being mean and bossy, think about how you would feel if your friend told your other friends about one of your quirks. You wouldn't be very happy, right? For example, avoid letting your friend know that her friend broke up with an ex-boyfriend. Email isn't completely private, so it's possible that the person whose business you're discussing could see the emails and become mad at you and/or embarrassed, and this could mess up your relationship with the person. Flames are basically insults sent online to offend you, so it's important not to send flames to other people or start flame wars. This could make the other person mad, and you could also have your account suspended for this. This can be anything, from a person's age to the name of the school that he or she goes to. Put yourself in the other person's shoes -- how would you feel if someone gave your friend the address of your house? You would not be very happy, so be sure to obtain permission before sharing someone's personal information with others over email, or don't do so at all. It will show you are angry and you can upset the person. For example, if you're angry at someone at work, and you email that person a large rant in all caps, this could cause the person that you emailed to become irritated. This is the same thing with replying to emails; if you're angry at someone for sending you a particular message, hold off replying until you have calmed down.

Summary:
Don't forward emails that are private. Don't spread rumors about people. Avoid discussing people's private business. Avoid flaming. Avoid sharing the personal information of others without permission. Don't send an email when you're angry.