Send Mail anti Spam

[andywhitt]

We have a our emails delivered to our linux mail server via smtp.

Is it possible to implement some kind of spam blocker and virus scanner on these incoming mails.

Any free applications out there?

Thanks

[Dolda2000]

It is indeed. I use spamassassin, and although I have set it up on a per-user basis for myself, it is indeed possible to make it system-wide. How to do it depends on the configuration, though. When a mail is received by sendmail on your server, what is done with it? Is it relayed or is it delivered to local mboxes? In the latter case, does procmail deliver it, or does sendmail deliver it manually?

[andywhitt]

Yes, the mail is delivered to local mailboxes using Procmail.

I'm tasking aslook at spamassasin, but any help on getting it setup would be cool.

Thanks

[Dolda2000]

Gread, using procmail makes all the much easier. Basically, you just need to install spamassassin, and then add this to your /etc/procmailrc:

:0fw
|/usr/bin/spamassassin

That will make procmail filter all incoming through spamassassin.