[Mimedefang] one word message blocking

[Andrew Jayes]

Hi,
	I am using subject filtering in mimedefang. At the moment I know
how to match whole subjects and exact matches such as:

($subject =~ /\bparis Hilton\b/i))

Can anyone tell me if it is possible to match single words within a
subject line using this method? It would be nice to be able to pick up
curse words and pharmaceutical products.
Otherwise who knows what my work place will degrade to with these kinds
of suggestions :)

andrew