But email is not perfect. Volumes have been written about the annoying Spam we get, and volumes should be written about the bad jokes that friends forward to us. But I have some other problems with email and think we all have to agree on some basic Email Etiquette and Rules.
Unless you are positive the person you're writing to knows all the geeky email abbreviations and emoticons you know, don't use them. Unless the recipient spends as much time on the Internet as you do, he or she is not likely to know that IOHO stands for "In Our Humble Opinion," or that 0+ stands for a female. Just write things out. No one's going to LOL at you.
Sometimes I'll send someone an email and I won't hear back right away because the person didn't get the message. Then after a few days, he'll get the message. Where was that email for three days? In Cyberspace, being held hostage by hackers, or is the recipient just ducking me like those who say they never get our phone messages? So, if it's an important email, I think it would be a good rule that once you get the email, you write back and say, "I got it."
If I email you and you don't get back to me for several days, please include my email in your response. Otherwise, I'll probably have no idea what you're talking about. Let's say, I wrote you that my wife had the flu, and I also asked what you thought about a movie. If you don't include what I said to you and you write back something like, "Sorry. It stunk," I'll probably email you again and ask what you're talking about, and the whole process will start all over again.