this article discusses how spam messages can be distinguished from legitimate
messages by looking at email headers and message content. it also mentions
how spam can be blocked effectively by taking these typical spam characteristics
into account.
spam is not only offensive and annoying; it causes loss of productivity decreases
bandwidth and costs companies a lot of money. therefore every smart company
that uses email must take measures in order to block spam from entering their
email systems. although it might not be possible to block out all spam just
blocking a large proportion of it will greatly reduce its harmful effects.
in order to effectively filter out spam and junk mail we need to be able to
distinguish spam from legitimate messages. to do this we need to identify typical
spam characteristics & practices. once these practices are known suitable
measures can be put into place to block these messages. of course spammers
are continually improving their spam tactics so it is important to keep up to date
on new spam practices from time to time to ensure spam is still being blocked
effectively.