When receiving a message
When a message has been read, decide immediately where to file it. Email can be managed just like traditional mail. To find a message easily, make a habit of filing the messages you receive into folders by topic. This way, it will be easier to find an old message or discussion thread. Some email clients let you assign a color to a message. It may be useful to set a color code for identifying certain categories of messages.
Except where necessary, do not print out emails. When email is filed properly, it may be easily found if needed. For this reason, it is useless to print out every email. This prevents wasting paper, helping to preserve the environment.
Respect the private nature of the messages you receive. Never forward or copy to others an email personally addressed to you without the consent of the original sender.
On using emoticons (smileys)
Emoticons (sometimes called smileys) are symbols included in messages to indicate the mood of the person who wrote the message (humorous, sarcastic, ironic, etc.) Their use is normally reserved for non-professional messages.
To create an emoticon, simply use punctuation symbols. To see them more easily, tilt your head 90 degrees to the left.