Identify yourself clearly and accurately in all electronic communications. Alteration of the source of electronic mail, message or posting is unethical and possibly illegal. Be sensitive to the inherent limitations of shared network resources. No computer security system can absolutely prevent a determined person from accessing stored information that they are not authorized to access. Too much information in one message is a burden on recipients.
Screens are harder to read than words on paper.
Don't send junk mail. Refrain from using E-Mail for unnecessary broadcasting. For example, chain letters are an inappropriate use of E-Mail and can cause excessive loading of mail facilities. Be aware that E-Mail might not be as private as you may wish because it works through shared technology. If confidentiality and privacy are very important, it may be advisable and more appropriate to use other communication methods.