RE: [cobalt-users] Spam blocking

["Tom Cameron" <tomcameron@xxxxxxxxxxxxxxx>]

=> The USPO doesn't blindly deliver all mail.  If a package is
=> suspicious, it probably won't get through.  Mail with
=> insufficient postage isn't delivered.  Mail fraud and certain
=> abuses are illegal.
=>
=> ISPs invest in equipment and bandwidth.  IANAL, but what I've
=> seen seems to indicate that the courts have understood ISPs' need
=> to protect their investment.

Perhaps my analogy is not perfect, but I think the main point is that you
should be very careful about blocking mail entirely. Clearly everyone agrees
with this.

=> That said, I agree that attempts to autosort (BMF, BogoFilter,
=> SA) provide much better results.  However, some customers want
=> blacklists... if a customers wants to use them, and understands
=> the issues, one should be fine.  But, again, IANAL.

This is exactly right - provided you do it on a customer by customer basis,
ensuring that they understand what is involved. I have clients who, while
they would love to remove spam, have a need to ensure delivery of all mail
and expect so.

Its just the blanket process of blocking across all accounts without
customer approval that I feel could be dangerous. IANAL also, but it pays to
be very careful in business.

Tom