E-mail messages are permanent and public . E-mail may be subpoenaed by a court. When sending or responding to a message on a sensitive or controversial topic, don't send your message right away. E-mail can be sent quickly to a large number of people, so it is easy to send a message that you'll later regret. Sending Messages Keep the list of recipients and copies to a minimum.
Many people feel they receive too much e-mail.
Send messages on a single subject whenever possible. This makes it easier to file, retrieve, forward, and reply. Replying To Messages When responding to a message, sometimes you want to respond to just the person who sent the message while other times you want everyone who got the original message to see your response. A common mistake is comments that are intended only for the sender but sent instead to the whole group. Mail feature that allows you to not include the original message in your reply.