Hi Gourav,
There is no direct way to invoke the jASEN engine against plain text as such. This is because the engine runs several "plugins" against a message which inspect various elements besides just the text content (eg message headers).
However one of the core plugins does simply inspect plain text to return an estimate of "spamminess". This is the...
2009-08-10 11:51:35 UTC in jASEN - java Anti Spam ENgine
