I get too many emails that I put into the Thunderbird Junk folder that are not labeled as Spam by AIS. Of course I can always black list the domain in the "Expert Settings" section under "Additional Protection"--"Antispam".
However this requires viewing the email which can be a security risk and then either copying and pasting the address or manually typing it into the list of black listed domains.
What I would like to see is for AIS to automatically black list all domains whose email I label as Junk in my email client. Maybe someone needs to write an addon for Thunderbird that will do this?