On Mon, 2005-06-27 at 11:55, James B. Byrne wrote:
> I have a problem getting spamd and sendmail (both stock CentOS4 rpms)
> to work together on a couple of smtp relay machines. This is clearly
> a configuration issue and no doubt revolves around my lack of
> comprehension of how this is to work.
>
> Basically, the setup consists of two frontend public smtp transports
> that redirect all email through a firewall to an internal imap server
> for final delivery. The firewall and sendmail access map prohibit
> connections to the imap server except for the local MX gateway. The
> external MX gateway is a fallback mx server that routes everything it
> queues through the primary gateway.
>
> So:
>
> MX 2 routes to MX 1 that routes to IMAP
>
> MX 2 and MX 1 are running spamd.
>
> the sendmail.m4 file has the following at its very end:
>
> dnl #
> dnl # MAILERs are always last after all FEATURES are defined
> MAILER(smtp)dnl
> MAILER(procmail)dnl
>
>
> The contents of /etc/procmailrc are:
>
> :0fw
> | /usr/bin/spamassassin
>
Procmail only runs during local delivery to a mailbox. If you
are relaying on to a 3rd IMAP machine it will go via the smtp
mailer, not procmail.
A good approach for this is to run MimeDefang
(http://www.mimedefang.org) with the sendmail milter interface and
let it coordinate your virus and spam scans.
--
Les Mikesell
lesmikesell@xxxxxxxxx
