In 1998, the Washington Legislature passed an historic law prohibiting the
sending of commercial e-mail messages containing false or misleading inform
ation in the subject line or header. The law also permits companies that pr
ovide Internet services, known as Internet Service Providers (ISPs), to blo
ck the transmission or receipt of messages reasonably believed to violate t
he statute. However, the law fails to specify the permissible activities th
at an ISP may pursue to form such a reasonable belief. It thereby encourage
s a variety of intrusive ISP activities, such as message screening. Existin
g statutory and constitutional privacy law provides the only shield for an
e-mail subscriber against invasive ISP activities. This Comment argues that
these existing privacy laws fail to provide meaningful protection to e-mai
l subscribers from the potential abuses of their ISPs. The Comment recommen
ds legislative action to amend the anti-spam law by explicitly limiting the
ways in which an ISP may develop its "reasonable belief" that a particular
e-mail message violates the anti-spam statute.