use a linux server to fetch mail for windows clients
 

Hello,
I would like to know if there is some way or some application that
could help in this possible situation:

Suppose you have many windows/linux/mac machines on an internal lan
that are connected to the internet via a linux server with nat.
Now, all these clients run some sort of mail clients like
thunderbird, outlook, that retrieve mail from pop3 accounts and
send mail via smtp.
Is possible to use the linux box as a "cache" for mail retrieving
that do antivirus via clamav and spam filtering retrieving the
mail for the clients? I think half of the work could be done via
fetchmail. But then?
Thanks,
tano

Fetchmail/procmail can deliver to users' mail boxes, and you will then need an imap or pop server for the clients to attach to. Look for dovecot, cyrus-imap, etc on google

Thanks, I will reading about them!