Blocking mail from bad places

[<michael.dillon () bt com>]

> You cannot mandate how hard somebody must work. It doesn't work.  Make
it
> 'expensive enough' to be wrong, and *then*  they will make the
necessary effort
> to be 'right'.

Some people block mail from bad places in an attempt to hurt the bad
place, i.e. in an etempt to make it expensive for them to be bad. But
nowadays there are so many bad places, so much SPAM that leaks through
filters, and so many missing emails, that it becomes harder and harder
to hurt the bad places by blocking email. Nowadays it is normal for
email to mysteriously bounce, to go missing, to get delivered days or
months late. Soon Internet email will be like IRC, a quaint service for
Internet enthusiasts and oldtimers, but not a useful tool for businesses
or ordinary individuals.

--Michael Dillon