[olug] Exim / SpamAssassin / Cyrus

[Jesse Regier]

I don't know much about exim so I have a couple of questions.

Does this scan emails only for local delivery?  

Can it be used in a gateway configuration where it sends all mail to
another server after being scanned?

I have been looking into setting up a spamfilter gateway that can be
placed in front of any mail server without making major changes.  It
looks like most Linux MTA's can use Spamassassin  but some are only
scanning when delivering to a local mailbox.

I want to end up with a gateway that just marks spam for later filtering
in the MUA and has a web interface to modify white/black lists etc.


Jesse




On Sat, 2002-08-10 at 12:02, Phil Brutsche wrote:
> Jeff Hinrichs wrote:
>  > That sounds very, close to what I'm doing: SA 2.31 + Cyrus 2.0.16-5 +
>  > Exim 4.05  It's been a bear(SA/Exim Transports) because of my
>  > currently limited experience.   I've got Cyrus/Exim running no prob
>  > but I can't seem to hammer out how to get SA in the mix.
> 
> It's very easy.
> 
> This is the router I'm using here at home; SpamAssassin 2.20 + Exim 
> 4.05/4.10 + Courier-IMAP (wrapped for long lines):
> 
> # Spam Assassin
> spamcheck_router:
>    no_verify
>    check_local_user
>    # When to scan a message :
>    #   -   it isn't already flagged as spam
>    #   -   it isn't already scanned
>    condition = "${if and { {!def:h_X-Spam-Flag:} {!eq \
>             ${received_protocol}{spam-scanned}}} {1}{0}}"
>    driver = accept
>    transport = spamcheck
> 
> And this is the transport, also wrapped for long lines:
> 
> # Spam Assassin
> spamcheck:
>    driver = pipe
>    command = /usr/exim/bin/exim -oMr spam-scanned -bS
>    use_bsmtp = true
>    transport_filter = /usr/bin/spamc
>    home_directory = "/tmp"
>    current_directory = "/tmp"
>    # must use a privileged user to set $received_protocol on the way back
>    # in!
>    user = mail
>    group = mail
>    log_output = true
>    return_fail_output = true
>    return_path_add = false
>    message_prefix =
>    message_suffix =
> 
> Don't forget to things like "command =", "user =" and "group =" to be 
> consistent for your mail server, otherwise things will break 
> spectacularly. :)
> 
> Oh, and don't fret much about the fact that I'm using Courier-IMAP 
> rather than Cyrus for the 2 stanzas above; in the grand scheme of things 
> it's not gonna make one iota of a difference.
> 
>  > Have you seen Exim-SA?
> 
> Yes
> 
>  > (http://marc.merlins.org/linux/exim/sa.html)  I keep reading about it
>  > and was toying with the idea of trying it out.
> 
> If I checked all messages for "spamminess" at SMTP time my lusers would
> drag me out and hang me.
> 
> I run SpamAssassin at delivery time so that I can have it only scan for 
> spam for certain users.
> 
>  > What distro are you using for the OS?
> 
> Debian Linux, of course :)
> 
> 
> Phil
> 
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