Mail filtering at server

[Frank Staals]

Hey,

I'm running FreeBSD 5-stable and I'm using the system as mailserver, so 
I set up sendmail using this guide: 
http://www.puresimplicity.net/~hemi/freebsd/sendmail.html as imap server 
I'm using imap-uw. Now I would like to do the following:

1) I would like to get all mail from questions at freebsd.org in a seperate 
directory. Currently I do this by filtering my mail in the mailclient ( 
Thunderbird ). The directory it uses for this is currently 
~/mail/Questions/ so I would like to keep that, how can I do this ? Can 
I add this to /etc/mail/access ? what would then be the syntax ?

2) I would also like to filter my mail for spam, again: currently I set 
up thunderbird to do this: the mail marked as spam/junk dissapears into 
the junk folder: ( ~/mail/junk ) What is the best way to set this up ? 
can this be done by sendmail itself or should I install an other program 
from the portstree

Thanks in advance,

-- 
-Frank Staals