SysBlog

// Create an instance of the mail object
mail=new mail();

// Set it's properties
mail.setSubject( "Sample Email" );
mail.setTo( "to@example.com" );
mail.setFrom( "from@example.com" );
mail.setCC( "cc@example.com" );
mail.setBCC( "bcc@example.com" );

// Add an attachment
mail.addParam( file="C:\foo.txt" );

// Add email body content in text and HTML formats
mail.addPart( type="text", charset="utf-8", wraptext="72", body="This is a test message." );
mail.addPart( type="html", charset="utf-8", body="<p>This is a test message.</p>" );

// Send the email
mail.send();

source: https://stackoverflow.com/questions/8423276/how-do-you-send-an-email-with-an-attachment-using-cfscript-in-cf9