Found this system requirement to be interesting:
o Canadian Internet service providers must be able to install spam filters.
See section 12.C in this new Canadian Anti-Spam Bill:
http://www.parl.gc.ca/37/3/parlbus/chambus/senate/bills/public/pdf/s-2_1.pdf
If passed, it will be required by Canadian Law
Here is the specific section as written:
Internet service providers
12 Every Internet service provider commits an offence who
.
.
(c) fails to install a spam filter that complies with standards set in the
by-laws of the Council;
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Hector Santos, Santronics Software, Inc.
http://www.santronics.com