The disadvantages of email include technical
problems which may result in the unexpected
non-delivery of messages, or attachments
arriving in unreadable form. A non-technical
disadvantage is that, paradoxically, the ease
with which messages can be sent results in
large amounts of'junk' and unnecessary
communication, which waste time.
As with faxes, a major drawback is the lack
of privacy and security. Do not use email to
communicate confidential information. It is
sometimes said that an email message is like
a postcard — anyone can read what you have
written. However, digital signing and
encryption (coding data, so that it can only be