[exim] "remove" message from queue

Hi,
I am trying to handle my mail-server as proffesional as possible. I
have some filters to aviod spam but I can see that some mails in my
queue are spam. What is the best/rightmost aproach to remove these
messages from my queue? -Mrm message-id ? Or another way?

Are there some good and recent guides on how to aviod spam?

--
Med venlig hilsen / Best Regards

LFWeb
Lars Nielsen
Thorsensvej 30
4800 Nykøbing Falster
Tlf: +45 20 64 85 76
email : lars@???
www : http://www.lfweb.dk